Major General Thomas Francis Farrell (3 December 1891 – 11 April 1967) was the Deputy Commanding General and Chief of Field Operations of the
Manhattan Project
The Manhattan Project was a research and development program undertaken during World War II to produce the first nuclear weapons. It was led by the United States in collaboration with the United Kingdom and Canada.
From 1942 to 1946, the ...
, acting as executive officer to Major General
Leslie R. Groves Jr.
Farrell graduated from
Rensselaer Polytechnic Institute with a degree in civil engineering in 1912. During
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, he served with the
1st Engineers on the
Western Front, and was awarded the
Distinguished Service Cross and the French
Croix de guerre. After the war, he was an instructor at the Engineer School, and then at the
United States Military Academy at West Point. He resigned from the Regular Army in 1926 to become Commissioner of Canals and Waterway for the State of New York from 1926 to 1930, and head of construction and engineering of the
New York State Department of Public Works from 1930 until 1941.
During
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
he returned to active duty as Groves' executive officer in the Operations Branch of the Construction Division under the Office of the
Quartermaster General. He went to the
China-Burma-India theater to help build the
Ledo Road. In January 1945, Groves chose Farrell as his
second-in-command of the Manhattan Project. Farrell observed the
Trinity test at the
Alamogordo Bombing and Gunnery Range with
J. Robert Oppenheimer. In August 1945, he went to
Tinian to supervise the
bombing of Hiroshima and Nagasaki. Afterwards he led teams of scientists to inspect the effects of the atomic bombs.
In 1946 he was appointed chairman of the
New York City Housing Authority. He subsequently worked as a consultant for the
Triborough Bridge and Tunnel Authority on projects such as the
Cross Bronx Expressway. He was a member of the evaluation board for
Operation Crossroads, and was an advisor to
Bernard Baruch, the United States representative on the
United Nations Atomic Energy Commission. During the
Korean War
The Korean War (25 June 1950 – 27 July 1953) was an armed conflict on the Korean Peninsula fought between North Korea (Democratic People's Republic of Korea; DPRK) and South Korea (Republic of Korea; ROK) and their allies. North Korea was s ...
, Farrell returned to active duty once more, serving with the
Defense Production Administration, and then with the
Atomic Energy Commission as its Assistant General Manager for Manufacturing. He oversaw a vast increase in the commission's production capabilities before retiring again in 1951. From 1960 to 1964, he worked on the preparations for the
1964 New York World's Fair
The 1964 New York World's Fair (also known as the 1964–1965 New York World's Fair) was an world's fair, international exposition at Flushing Meadows–Corona Park in Queens, New York City, United States. The fair included exhibitions, activ ...
.
Early life
Thomas Francis Farrell was born on 3 December 1891 in
Brunswick, New York, the fourth of nine children of John Joseph Farrell Sr., a farmer, and his wife Margaret née Connolly.
Farrell was raised on the family's farm, where his father had an apple orchard, and raised pigs and dairy cattle. The children helped with the farm chores, and delivering the milk, but none stayed on as adults.
Farrell graduated from
Rensselaer Polytechnic Institute in 1912.
His first professional job was working on the
New York State Barge Canal. Seeing Irish workers being mistreated by bosses made him a staunch supporter of organized labor.
He worked on the
Panama Canal
The Panama Canal () is an artificial waterway in Panama that connects the Caribbean Sea with the Pacific Ocean. It cuts across the narrowest point of the Isthmus of Panama, and is a Channel (geography), conduit for maritime trade between th ...
from 1913 to 1916.
Farrell joined the
Corps of Engineers Officers Reserve Corps in 1916.
He married Maria Ynez White in 1917 before departing for France with the
American Expeditionary Force
The American Expeditionary Forces (AEF) was a formation of the United States Armed Forces on the Western Front (World War I), Western Front during World War I, composed mostly of units from the United States Army, U.S. Army. The AEF was establis ...
(AEF).
He joined the
1st Engineers with the rank of
second lieutenant, and departed from
Hoboken, New Jersey
Hoboken ( ; ) is a City (New Jersey), city in Hudson County, New Jersey, Hudson County in the U.S. state of New Jersey. Hoboken is part of the New York metropolitan area and is the site of Hoboken Terminal, a major transportation hub. As of the ...
on the
USAT ''Finland'' on 6 August as the assistant supply officer with the rank of
first lieutenant
First lieutenant is a commissioned officer military rank in many armed forces; in some forces, it is an appointment.
The rank of lieutenant has different meanings in different military formations, but in most forces it is sub-divided into a se ...
. He became a
captain and regimental supply officer in October, and subsequently, with the rank of
major
Major most commonly refers to:
* Major (rank), a military rank
* Academic major, an academic discipline to which an undergraduate student formally commits
* People named Major, including given names, surnames, nicknames
* Major and minor in musi ...
, commanded the 2nd Battalion from January to May 1918, Company F from May to July, and finally the 1st Battalion from July 1918.
Farrell participated in the
Battle of Cantigny, the
Aisne-Marne Offensive, the
Battle of Montdidier-Noyon and the
Meuse-Argonne Offensive.
The 1st Engineers' main role was maintenance of the roads and construction of bridges in the
1st Division area, although detachments also employed
Bangalore torpedoes to clear paths through barbed wire. However, during the Argonne battle, Farrell's 1st Battalion was committed to the line as infantry. For his leadership in the action that followed, he was awarded the
Distinguished Service Cross. His citation read:
Farrell was also awarded the
Croix de guerre with palm for his actions, and the 1st Battalion received a citation from
Major General Charles Summerall, the commander of
V Corps. After the
Armistice with Germany in November 1918, the 1st Engineers participated in the
occupation of the Rhineland, with Farrell's 1st Battalion basing itself at
Ebernhahn. The 1st Engineers returned to the United States in August and September 1919. After the war, Farrell joined the Regular Army. He served as an instructor at the Engineer School at
Camp A. A. Humphreys from 1921 to 1924, and then at the
United States Military Academy at West Point until 1926.
Farrell resigned from the Regular Army in 1926, but remained in the reserves. The
Governor of New York
The governor of New York is the head of government of the U.S. state of New York. The governor is the head of the executive branch of New York's state government and the commander-in-chief of the state's military forces. The governor ...
,
Al Smith
Alfred Emanuel Smith (December 30, 1873 – October 4, 1944) was the 42nd governor of New York, serving from 1919 to 1920 and again from 1923 to 1928. He was the Democratic Party (United States), Democratic Party's presidential nominee in the 1 ...
, appointed Farrell as Commissioner of Canals and Waterway for the State of New York.
He was head of construction and engineering of the
New York State Department of Public Works from 1930 until 1941.
He was considered as a possible candidate to replace
Frederick Stuart Greene as Superintendent of Public Works, but Greene did not retire. The
Great Depression
The Great Depression was a severe global economic downturn from 1929 to 1939. The period was characterized by high rates of unemployment and poverty, drastic reductions in industrial production and international trade, and widespread bank and ...
led to a vast expansion of public works activity, both nationally and in New York. Major projects in New York included the
1939 New York World's Fair
The 1939 New York World's Fair (also known as the 1939–1940 New York World's Fair) was an world's fair, international exposition at Flushing Meadows–Corona Park in Queens, New York City, New York, United States. The fair included exhibitio ...
at
Flushing Meadows–Corona Park, as well as the construction of
LaGuardia Airport.
World War II
Construction in the United States
Farrell returned to active duty in February 1941 with the rank of
lieutenant colonel to act as then-
Colonel
Colonel ( ; abbreviated as Col., Col, or COL) is a senior military Officer (armed forces), officer rank used in many countries. It is also used in some police forces and paramilitary organizations.
In the 17th, 18th, and 19th centuries, a colon ...
Leslie R. Groves Jr.'s executive officer in the Operations Branch of the Construction Division under the Office of the Office of the
Quartermaster General. At this point, the US Army was about to embark on a national mobilization, and it was the task of the Construction Division of the
Quartermaster Corps to prepare the necessary accommodations and training facilities for the vast army that would be created. The enormous construction program had been dogged by bottlenecks, shortages, delays, spiralling costs, and poor living conditions at the construction sites. Newspapers began publishing accounts charging the Construction Division with incompetence, ineptitude, and inefficiency. Farrell and Groves worked out new, simplified procedures for centralized procurement that provided the flexibility needed to get projects done on time with the accountability that such enormous expenditures demanded. He was awarded the
Legion of Merit for his services.
China-Burma-India
In September 1943, the Chief of
Army Service Forces,
Lieutenant General
Lieutenant general (Lt Gen, LTG and similar) is a military rank used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on the battlefield, who was norma ...
Brehon B. Somervell, created a special India Committee to coordinate activities in the
China-Burma-India theater with those of Army Service Forces back home. Farrell, now a
colonel
Colonel ( ; abbreviated as Col., Col, or COL) is a senior military Officer (armed forces), officer rank used in many countries. It is also used in some police forces and paramilitary organizations.
In the 17th, 18th, and 19th centuries, a colon ...
, was appointed to the committee to oversee construction. The creation of a line of communications from India to China would be the largest engineer undertaking of the war. A number of new units were trained in the United States specifically for the task. In a reorganization later that year, Farrell became Chief Engineer of the
Services of Supply in the China-Burma-India theater. In December he also became head of its Construction Division.
Farrell, who was promoted to
brigadier general in January 1944,
organized his command into two divisions and six districts. He was in charge of the work inside India; construction of the
Ledo Road itself was the responsibility of Colonel
Lewis A. Pick. In addition to this work, Farrell had to support
Operation Matterhorn, the deployment of
B-29
The Boeing B-29 Superfortress is a retired American four-engined Propeller (aeronautics), propeller-driven heavy bomber, designed by Boeing and flown primarily by the United States during World War II and the Korean War. Named in allusion to ...
bombers to China and India, which involved the construction and expansion of a series of air bases. The B-29s required runways that were almost twice the size of those for the older
B-17s,
and he was forced to divert his resources to construct a oil pipeline to the Matterhorn airfields.
To bridge the fast-following rivers of northern Burma, Pick and Farrell selected the H-20 Portable Steel Highway Bridge. Production of these had been discontinued in favor of the
Bailey bridge
A Bailey bridge is a type of portable, Prefabrication, pre-fabricated, Truss Bridge, truss bridge. It was developed in 1940–1941 by the British Empire in World War II, British for military use during the World War II, Second World War and saw ...
, but Farrell's technical arguments won out and the Corps of Engineers had to reinstate production of the H-20.
In view of these difficulties, Farrell obtained Bailey bridges from British sources. In the end, all the major bridges beyond the
Irrawaddy River
The Irrawaddy River (, , Ayeyarwady) is the principal river of Myanmar, running through the centre of the country. Myanmar’s most important commercial waterway, it is about 1,350 miles (2,170 km) long. Originating from the confluence of the ...
would be Baileys. He also made the decision, controversial in
Washington, to shift the terminus of the oil pipeline from
Calcutta
Kolkata, also known as Calcutta (List of renamed places in India#West Bengal, its official name until 2001), is the capital and largest city of the Indian States and union territories of India, state of West Bengal. It lies on the eastern ba ...
to
Chittagong in order to avoid crossing the
Ganges
The Ganges ( ; in India: Ganga, ; in Bangladesh: Padma, ). "The Ganges Basin, known in India as the Ganga and in Bangladesh as the Padma, is an international which goes through India, Bangladesh, Nepal and China." is a trans-boundary rive ...
and
Brahmaputra Rivers, and the dangers of concentrating too many vulnerable installations in the Calcutta area.
He was awarded the
Distinguished Service Medal.
Manhattan Project
In December 1944, the
Secretary of War
The secretary of war was a member of the U.S. president's Cabinet, beginning with George Washington's administration. A similar position, called either "Secretary at War" or "Secretary of War", had been appointed to serve the Congress of the ...
,
Henry L. Stimson, ordered Groves, now the Director of the
Manhattan Project
The Manhattan Project was a research and development program undertaken during World War II to produce the first nuclear weapons. It was led by the United States in collaboration with the United Kingdom and Canada.
From 1942 to 1946, the ...
, to find a deputy. Stimson was concerned about what would happen if Groves became incapacitated. "You can have any officer in the Army," Stimson told Groves, "no matter who he is, or what duty he is on." Groves told Colonel
Kenneth Nichols, the commander of the Manhattan District, that his first choice would be Farrell. Nichols replied: "He would be my first choice too." "Site Y" was the code name for the remote
Los Alamos County, New Mexico facilities that housed the main group of researchers and was responsible for final assembly of the bombs.
Farrell was briefed on the physics of the
atomic bomb by
Robert Oppenheimer, and he made several extended tours of the
Alamogordo Bombing and Gunnery Range, which had been chosen as the site for the
Trinity test. On signing a receipt for the
plutonium
Plutonium is a chemical element; it has symbol Pu and atomic number 94. It is a silvery-gray actinide metal that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four ...
from
Oak Ridge, Farrell commented:
Farrell observed the
Trinity (nuclear test)
Trinity was the first detonation of a nuclear weapon, conducted by the United States Army at 5:29 a.m. MWT (11:29:21 GMT) on July 16, 1945, as part of the Manhattan Project. The test was of an implosion-design plutonium bomb, or "gadg ...
with Oppenheimer from the control dugout located from the test tower. He initially said to a fellow officer ''The long-hairs have let it get away from them''. In his report on the test to President Truman on 21 July 1945, Farrell stated: .

Farrell assumed special responsibility for combat operations. He served on the target committee, acting as its chairman when Groves was absent. In July 1945, Farrell arrived on
Guam
Guam ( ; ) is an island that is an Territories of the United States, organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. Guam's capital is Hagåtña, Guam, Hagåtña, and the most ...
to coordinate the project with the local commanders. One of his tasks was to brief
General of the Army Douglas MacArthur
Douglas MacArthur (26 January 18805 April 1964) was an American general who served as a top commander during World War II and the Korean War, achieving the rank of General of the Army (United States), General of the Army. He served with dis ...
, which he did on July 26. Farrell was joined by
Rear Admiral
Rear admiral is a flag officer rank used by English-speaking navies. In most European navies, the equivalent rank is called counter admiral.
Rear admiral is usually immediately senior to commodore and immediately below vice admiral. It is ...
William R. Purnell, who represented the Military Liaison Committee, and
Captain William S. Parsons, the commander of
Project Alberta. They became, informally, the "Tinian Joint Chiefs", with decision-making authority over the nuclear mission.
Farrell notified Groves that the
Little Boy bomb would be ready for use on or about 3 August, weather permitting. In the space of a week on Tinian, four B-29s crashed and burned on the runway. Parsons became very concerned. If a B-29 crashed with a Little Boy, the fire could cook off the explosive and detonate the weapon, with catastrophic consequences. Parsons raised the possibility of arming the bomb in flight with Farrell, who agreed that it might be a good idea. Farrell asked Parsons if he knew how to do it. "No sir, I don't", Parsons conceded, "but I've got all afternoon to learn." After the
bombing of Hiroshima on 6 August, Farrell, along with Generals
Carl Spaatz,
Nathan Twining,
Barney Giles and
James H. Davies, debriefed Parsons, the aircrews and the observers, and sent Groves a detailed report.
Farrell brought forward the date for the next attack because good weather was only predicted until 9 August. He signed the
Fat Man bomb, "To
Hirohito
, Posthumous name, posthumously honored as , was the 124th emperor of Japan according to the traditional order of succession, from 25 December 1926 until Death and state funeral of Hirohito, his death in 1989. He remains Japan's longest-reigni ...
, with love and kisses, T. F. Farrell." The bomb was loaded on the B-29 ''
Bockscar''. During pre-flight inspection, a fuel pump was found to be faulty, meaning that of fuel in the bomb bay tank could not be used, although it would have to be carried. Farrell took the difficult decision to continue the mission, in view of the worsening weather. This was only the first of a number of problems that faced the mission crews that day, but the mission was carried out successfully.
The surrender of Japan on 14 August precluded further attacks. Groves had already directed Farrell to prepare teams to inspect the effects of the atomic bombs on Hiroshima and Nagasaki, and Farrell had begun assembling the required personnel and equipment. Farrell arrived in Hiroshima by air on 8 September as part of a group, equipped with portable
geiger counters, that was headed by himself, and also included Brigadier General
James B. Newman, Jr from the
US Army Air Forces, Japanese Rear Admiral Masao Tsuzuki, who acted as a translator, and Colonel
Stafford L. Warren, the head of the Manhattan District's Medical Section. They remained in Hiroshima until 14 September and then surveyed Nagasaki from 19 September to 8 October. They were greatly impressed by both the damage done by the atomic bombs, and the extensive Japanese preparations for the
Allied invasion that had been planned prior to the surrender.
Post-war
Farrell was promoted to the rank of major general in October 1945. He remained Deputy Commander of the Manhattan Project until he retired from active service in April 1946.
He was appointed chairman of the
New York City Housing Authority by Mayor
William O'Dwyer on
Robert Moses's recommendation. In the aftermath of the war, providing public housing, especially for returning veterans, was a major priority for the city. Unlike other projects of the time, New York City public housing was not
racially segregated. Writing in 1950, Farrell declared, "New York's public housing projects demonstrate that Negroes and whites can live together."
He served as a member of the evaluation board for
Operation Crossroads, and was an advisor to
Bernard Baruch, the United States' representative on the
United Nations Atomic Energy Commission. In 1950, during the
Korean War
The Korean War (25 June 1950 – 27 July 1953) was an armed conflict on the Korean Peninsula fought between North Korea (Democratic People's Republic of Korea; DPRK) and South Korea (Republic of Korea; ROK) and their allies. North Korea was s ...
, Farrell returned to active duty with the Army once more, and served with the
Defense Production Administration. In July 1951, he was transferred to the
Atomic Energy Commission (AEC), the successor organization to the Manhattan Project, where he became the
Assistant General Manager for Manufacturing. In this role, he oversaw a vast increase in the commission's production capabilities. The construction of new reactors at the
Hanford and
Savannah River Sites would eventually triple the production of nuclear weapons.
Farrell left the AEC and active duty Army again in February 1952. He subsequently worked as a consultant for the
Triborough Bridge and Tunnel Authority on projects such as the
Cross Bronx Expressway. From 1960 to 1964, he worked on the preparations for the
1964 New York World's Fair
The 1964 New York World's Fair (also known as the 1964–1965 New York World's Fair) was an world's fair, international exposition at Flushing Meadows–Corona Park in Queens, New York City, United States. The fair included exhibitions, activ ...
at Flushing Meadows–Corona Park.
His children were Thomas, Barbara, Peter, Patricia, and Stephen.
Thomas graduated from West Point in the class of 1942, received the
Silver Star Medal and the Distinguished Service Cross, and reached the rank of captain before being killed at
Anzio on 25 February 1944. An Army port repair ship, the
''Thomas F. Farrell Jr.'', was named in his honor. Peter graduated from West Point in the class of 1950. He served with the Army in the
Vietnam War
The Vietnam War (1 November 1955 – 30 April 1975) was an armed conflict in Vietnam, Laos, and Cambodia fought between North Vietnam (Democratic Republic of Vietnam) and South Vietnam (Republic of Vietnam) and their allies. North Vietnam w ...
, where he commanded the 6th Battalion,
56th Air Defense Artillery during the
Tet Offensive. He retired from the Army in 1978 with the rank of colonel. Farrell's daughter,
Barbara Vucanovich, was the first woman from
Nevada
Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
to be elected to the
United States House of Representatives
The United States House of Representatives is a chamber of the Bicameralism, bicameral United States Congress; it is the lower house, with the U.S. Senate being the upper house. Together, the House and Senate have the authority under Artic ...
, serving from 1983 to 1997. His granddaughter,
Patricia Dillon Cafferata, served as
Nevada State Treasurer from 1983 to 1987. Farrell died at
Saint Mary's Hospital in
Reno, Nevada
Reno ( ) is a city in the northwest section of the U.S. state of Nevada, along the Nevada–California border. It is the county seat and most populous city of Washoe County, Nevada, Washoe County. Sitting in the High Eastern Sierra foothills, ...
, on 11 April 1967. His wife Ynez had died the year before.
Ironically, the man who had spent a lifetime building things was principally remembered for the destruction of Hiroshima and Nagasaki.
In popular culture
He was portrayed by
Henry O'Neill in ''
The Beginning or the End'', a docudrama about the Manhattan Project.
Notes
References
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Further reading
* Vogel, Steve (2007), ''
The Pentagon
The Pentagon is the headquarters building of the United States Department of Defense, in Arlington County, Virginia, across the Potomac River from Washington, D.C. The building was constructed on an accelerated schedule during World War II. As ...
—A History: The Untold Story of the Wartime Race to Build the Pentagon—and to Restore It Sixty Years Later'', New York: Random House.
External links
Annotated Bibliography for Thomas Farrell from the Alsos Digital Library for Nuclear IssuesGeneral Thomas Farrell expresses his views at North Field base in Tinian Island, in World War II
{{DEFAULTSORT:Farrell, Thomas
1891 births
1967 deaths
Manhattan Project people
United States Army generals of World War II
United States Army generals
People from Brunswick, New York
Military personnel from New York (state)
Rensselaer Polytechnic Institute alumni
American recipients of the Croix de Guerre 1914–1918 (France)
Recipients of the Distinguished Service Cross (United States)
Recipients of the Distinguished Service Medal (US Army)
Recipients of the Legion of Merit
United States Army personnel of World War I
United States Military Academy faculty
United States Army Corps of Engineers personnel