Almon Brown Strowger (; February 11, 1839 – May 26, 1902) was an American inventor for whom the
Strowger switch, an electromechanical
telephone exchange
A telephone exchange, telephone switch, or central office is a central component of a telecommunications system in the public switched telephone network (PSTN) or in large enterprises. It facilitates the establishment of communication circuits ...
technology, is named.
Early years
Strowger was born in
Penfield, New York, near
Rochester, the grandson of the second settler and first
miller in Penfield. Little is known about his early life. It is said that if his mother gave her children a task, Strowger and his brothers would often try to devise a machine to do the task for them. He taught school in Penfield for a time.
In October 1861, he enlisted as a Musician in Company A,
8th New York Cavalry Regiment, to fight in the
American Civil War
The American Civil War (April 12, 1861May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States between the Union (American Civil War), Union ("the North") and the Confederate States of A ...
. He was promoted to Sergeant and Chief Trumpeter of the regiment in February 1864, and ended the war as a Second Lieutenant. He was wounded in action at the
Third Battle of Winchester in 1864, and discharged later that year.
After the Civil War, it appears he first became a country school teacher before he became an
undertaker
A funeral director, also known as an undertaker or mortician (American English), is a professional who has licenses in funeral arranging and embalming (or preparation of the deceased) involved in the business of funeral rites. These tasks o ...
. He is variously attributed as living in
El Dorado, Kansas, or
Topeka, Kansas
Topeka ( ) is the capital city of the U.S. state of Kansas and the county seat of Shawnee County. It is along the Kansas River in the central part of Shawnee County, in northeastern Kansas, in the Central United States. As of the 2020 cen ...
, and finally
Kansas City, Missouri
Kansas City, Missouri, abbreviated KC or KCMO, is the largest city in the U.S. state of Missouri by List of cities in Missouri, population and area. The city lies within Jackson County, Missouri, Jackson, Clay County, Missouri, Clay, and Pl ...
. It is not clear where his idea of an automatic telephone exchange was originally conceived, but his patent application identifies him as being a resident of Kansas City, Missouri, on March 10, 1891.
Telephone exchange
A commonly told story holds that Strowger believed that his
undertaking business was losing clients to a competitor whose wife was a local telephone operator and was preventing telephone calls from being routed to Strowger's business and re-routing them to her husband's business instead, following his discovery in the newspaper that a friend's funeral was being handled elsewhere. Motivated to remove the intermediary operator, he invented the first
automatic telephone exchange in 1889; he received its patent in 1891. It is reported that he initially constructed a model of his invention from a round collar box and some straight pins.
Finances
While Strowger may have come up with the idea, he was not alone in his endeavors and sought the assistance of his nephew William and others with a knowledge of electricity and money to realise his concepts. With this help the
Strowger Automatic Telephone Exchange Company was formed and it installed and opened the first commercial exchange in (his then home town of)
La Porte, Indiana
La Porte () is a city in LaPorte County, Indiana, United States, of which it is the county seat. Its population was estimated to be 21,341 in 2022. It is one of the two principal cities of the Michigan City-La Porte, Indiana metropolitan stat ...
, on November 3, 1892, with about 75 subscribers and capacity for 99. He married Susan A. (1846–1921) from
Massachusetts
Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...
in 1897 as his second wife. Strowger sold his patents to his associates in 1896 for $1,800 (about $59,000 in 2021) and sold his share in the
Automatic Electric Company for $10,000 (about $330,000 in 2021) in 1898. His patents were subsequently sold to Bell Systems for $2.5 million in 1916 (about $63,000,000 in 2021).
The company's engineers continued development of Strowger's designs and submitted several patents in the names of its employees. It also underwent several name changes. Strowger himself seems to have not taken part in this further development. He subsequently moved to
St. Petersburg, Florida, and appears to have returned to being an undertaker, as H.P. Bussey Funeral Home records report an
unidentified body being moved "for Mr. Strowger" in December 1899. The same funeral home subsequently buried Strowger himself. Strowger was a man of some wealth at his death and was reported as owning at least a city block of property.
Death
Strowger died, aged 63, of an
aneurysm
An aneurysm is an outward :wikt:bulge, bulging, likened to a bubble or balloon, caused by a localized, abnormal, weak spot on a blood vessel wall. Aneurysms may be a result of a hereditary condition or an acquired disease. Aneurysms can also b ...
after suffering from
anemia
Anemia (also spelt anaemia in British English) is a blood disorder in which the blood has a reduced ability to carry oxygen. This can be due to a lower than normal number of red blood cells, a reduction in the amount of hemoglobin availabl ...
, at
St. Petersburg,
Pinellas County, Florida; he was buried in Greenwood Cemetery the next day. His grave is marked with the traditional white
headstone
A gravestone or tombstone is a marker, usually stone, that is placed over a grave. A marker set at the head of the grave may be called a headstone. An especially old or elaborate stone slab may be called a funeral stele, stela, or slab. The u ...
with an inscription that reads: "Lieut. A.B. Strowger, Co. A, 8 NY Cav."
He was survived by his widow Susan A. Strowger (1846–1921). After her death in
Tampa, Florida
Tampa ( ) is a city on the Gulf Coast of the United States, Gulf Coast of the U.S. state of Florida. Tampa's borders include the north shore of Tampa Bay and the east shore of Old Tampa Bay. Tampa is the largest city in the Tampa Bay area and t ...
, on April 14, 1921, her obituary appeared in the ''
St. Petersburg Times'', claiming she had additional "revolutionary" Strowger designs, but she had refused to make them public while she was alive because only others would profit from her husband's designs. She had claimed that her husband had only received $10,000 for his invention, when he should have received $1,000,000.
Legacy
A bronze plaque, to commemorate his invention, was placed on his grave in 1945 by telephone company officials. Strowger was admitted to the hall of fame of the U.S. Independent Telephone Association (now called the
USTA
The United States Tennis Association (USTA) is the national Sport governing body, governing body for tennis in the United States. A not-for-profit organization with more than 700,000 members, it invests 100% of its proceeds to promote and devel ...
) in 1965. Apart from his invention, his name has also been given to a
locomotive
A locomotive is a rail transport, rail vehicle that provides the motive power for a train. Traditionally, locomotives pulled trains from the front. However, Push–pull train, push–pull operation has become common, and in the pursuit for ...
and a company business award.
In 2003, the Verizon Foundation awarded $4500 to Pinellas Heritage, Inc. and the Pinellas Genealogy Society in Strowger's memory. The funds were used to develop a website to impart the history of the cemetery where Strowger is buried, and to restore two Civil War memorials. The Greenwood Cemetery project won an organization achievement award from the Florida Trust for Historic Preservation.
Patents
* Strowger switch "Automatic Telephone Exchange" (March 10, 1891)
* Strowger patent for "Automatic Telephone or Other Electrical Exchange" (November 29, 1892)
* Strowger, et. al. patent for "Electrical Exchange" (October 5, 1897)
See also
*
*
References
Sources
* Katherine Wilcox Thompson, "Penfield's Past", 1960, pub. by the Town of Penfield, NY, pp 178–179
*
*
*
Bell Labs
Nokia Bell Labs, commonly referred to as ''Bell Labs'', is an American industrial research and development company owned by Finnish technology company Nokia. With headquarters located in Murray Hill, New Jersey, Murray Hill, New Jersey, the compa ...
Bell Laboratories Website
External links
The oldest Strowger switch still in commercial service today at Camp Shohola for Boys, Pennsylvania, US*
ttps://web.archive.org/web/20111025123622/http://www.privateline.com/Switching/EarlyYears.html Reproduction with permission of the article ''The Early Years of the Strowger System'' by R.B. HillPinellas Genealogy Society – H.P. Bussey Funeral Home Records – with 2 entries for Strowger, one identified as A.B. Strowger*
ttp://www.samhallas.co.uk/railway/brt_locos.htm BRT Locomotives – Almon B. StrowgerThe Strowger Telecoms Site (UK) with link to 'copyrighted' sounds*
* [https://www.telephonecollectors.info/index.php/browse/catalogs-manuals-educational-docs-by-company/automatic-electric-2/10538-this-is-automatic-electric-1955-ocr-r/file TCI Library, ''This is Automatic Electric''. 1955.]
{{Use mdy dates, date=September 2020
1839 births
1902 deaths
People from Penfield, New York
Union army officers
19th-century American inventors
People from Kansas City, Kansas
Deaths from aneurysm