Thomas Oldham (4 May 1816,

Dublin Dublin is the capital and largest city of Republic of Ireland, Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the Provinces of Ireland, province of Leinster, and is bordered on the south by the Dublin Mountains, pa ...

– 17 July 1878,

Rugby Rugby may refer to: Sport * Rugby football in many forms: ** Rugby union: 15 players per side *** American flag rugby *** Beach rugby *** Mini rugby *** Rugby sevens, 7 players per side *** Rugby tens, 10 players per side *** Snow rugby *** Tou ...

) was an Anglo-Irish

geologist A geologist is a scientist who studies the structure, composition, and History of Earth, history of Earth. Geologists incorporate techniques from physics, chemistry, biology, mathematics, and geography to perform research in the Field research, ...

Early life

Thomas was born at Dublin on 4 May 1816 as the eldest son of Thomas Oldham and his wife, Margaret Bagot. Educated at a private schools, he began residency at

Trinity College, Dublin Trinity College Dublin (), officially titled The College of the Holy and Undivided Trinity of Queen Elizabeth near Dublin, and legally incorporated as Trinity College, the University of Dublin (TCD), is the sole constituent college of the Univ ...

before the age of 16. By spring 1836, he started his B.A. and later studied civil engineering at the

University of Edinburgh The University of Edinburgh (, ; abbreviated as ''Edin.'' in Post-nominal letters, post-nominals) is a Public university, public research university based in Edinburgh, Scotland. Founded by the City of Edinburgh Council, town council under th ...

as well as geology under

Robert Jameson image:Robert Jameson.jpg, Robert Jameson Robert Jameson Fellow of the Royal Society, FRS FRSE (11 July 1774 – 19 April 1854) was a Scottish natural history, naturalist and mineralogist. As Regius Professor of Natural History at the Univers ...

. They became intimate friends. After two years in Scotland, he returned to Dublin. He married Louisa Matilda Dixon of Liverpool in 1850.

Geology

In 1838 he joined the ordnance survey in Ireland as a chief assistant under Joseph Ellison Portlock who was studying the geology of Londonderry and

neighbourhood A neighbourhood (Commonwealth English) or neighborhood (American English) is a geographically localized community within a larger town, city, suburb or rural area, sometimes consisting of a single street and the buildings lining it. Neighbourh ...

. Portlock wrote of him He discovered radiating fans shaped impressions in the town of

Bray Bray may refer to: Places France * Bray, Eure, in the Eure ''département'' * Bray, Saône-et-Loire, in the Saône-et-Loire ''département'' * Bray-Dunes, in the Nord ''département'' * Bray-en-Val, in the Loiret ''département'' * Bray-et-Lû ...

in 1840. He showed this to the English palaeontologist

Edward Forbes Edward Forbes FRS, FGS (12 February 1815 – 18 November 1854) was a Manx naturalist. In 1846, he proposed that the distributions of montane plants and animals had been compressed downslope, and some oceanic islands connected to the mainland ...

, who named it ''

Oldhamia ''Oldhamia'' is an ichnogenus describing burrows produced by worm-like organisms mining underneath microbial mats. It was common from the Early Cambrian deep-water deposits. The Ediacaran species ''Oldhamia recta'' are body fossils of a rod-like ...

'' after him. Forbes declared them to be

bryozoa Bryozoa (also known as the Polyzoa, Ectoprocta or commonly as moss animals) are a phylum of simple, aquatic animal, aquatic invertebrate animals, nearly all living in sedentary Colony (biology), colonies. Typically about long, they have a spe ...

ns, however later workers ascribed it to other plants and animals. For a while these were considered the oldest fossils in the world. He became Curator to the Geological Society of Dublin, and in 1845 succeeded John Phillips, nephew of

William Smith William, Willie, Will, Bill, or Billy Smith may refer to: Academics * William Smith (Master of Clare College, Cambridge) (1556–1615), English academic * William Smith (antiquary) (c. 1653–1735), English antiquary and historian of University C ...

, in the Chair of Geology at

. He was elected a

Fellow of the Royal Society Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the Fellows of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural science, natural knowledge, incl ...

in June 1848.

Career in India

He resigned as the Curator to the Geological Society of Dublin in November 1850 and took a position as the first Superintendent of the

Geological Survey of India The Geological Survey of India (GSI) is a scientific agency of India. It was founded in 1851, as a Government of India organization under the Ministry of Mines, one of the oldest of such organisations in the world and the second oldest survey ...

. He was the first Irish geologists to migrate to the subcontinent. He was followed by his brother

Charles Charles is a masculine given name predominantly found in English language, English and French language, French speaking countries. It is from the French form ''Charles'' of the Proto-Germanic, Proto-Germanic name (in runic alphabet) or ''* ...

, William King Jr. (son of

William King William King may refer to: Arts * Willie King (1943–2009), American blues guitarist and singer * William King (author) (born 1959), British science fiction author and game designer, also known as Bill King * William King (artist) (1925–2015), ...

, the Professor of Geology at

Queen's College, Galway The University of Galway () is a public research university located in the city of Galway, Ireland. The university was founded in 1845 as "Queen's College, Galway". It was known as "University College, Galway" (UCG) () from 1908 to 1997 and as ...

Valentine Ball Valentine Ball (14 July 1843 – 15 June 1895) was an Irish geologist, son of Robert Ball (1802–1857) and a brother of Sir Robert Ball. Ball worked in the Geological Survey of India for twenty years before returning to take up a positi ...

, and more than 12 other Irish geologists. In India he oversaw a mapping programme that focussed on coal bearing strata. The team of geologists made major discoveries.

Henry Benedict Medlicott Henry Benedict Medlicott, FRS (3 August 1829 – 6 April 1905) was an Irish geologist who worked in India. He was a coauthor of a text on the geology of India and is credited with the coining of the term "Gondwana" which was later used to cre ...

coined the term "Gondwana Series" in 1872. Oldham's elder son

Richard Dixon Oldham Richard Dixon Oldham FRS (; 31 July 1858 – 15 July 1936) was a British geologist who made the first clear identification of the separate arrivals of P-waves, S-waves and surface waves on seismograms and the first clear evidence that ...

distinguished three types of

pressure Pressure (symbol: ''p'' or ''P'') is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled ''gage'' pressure)The preferred spelling varies by country and eve ...

produced by earthquakes: now known as P (compressional), S (shear), and L (Love)-waves, based on his observations made after the Great Assam Earthquake of 1897. Richard showed in 1906 the arrival patterns of waves and suggested that the core of the earth was liquid. His younger son

Henry Henry may refer to: People and fictional characters * Henry (given name), including lists of people and fictional characters * Henry (surname) * Henry, a stage name of François-Louis Henry (1786–1855), French baritone Arts and entertainmen ...

became a reader in geography at

King's College, Cambridge King's College, formally The King's College of Our Lady and Saint Nicholas in Cambridge, is a List of colleges of the University of Cambridge, constituent college of the University of Cambridge. The college lies beside the River Cam and faces ...

. He also started the ''Paleontologia Indica'', a series of memoirs on the

fossils A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

of India. For this work, he recruited

Ferdinand Stoliczka Ferdinand Stoliczka (Czech language, Czech written Stolička, 7 June 1838 – 19 June 1874) was a Moravian palaeontologist who worked in India on paleontology, geology and various aspects of zoology, including ornithology, malacology, and herpe ...

from Europe.

Later days

Oldham resigned from his position in India in 1876 on the grounds of poor health and retired to Rugby in England. In recognition of his lifetime's "long & important services in the science of geology", including ''Palaeontographica Indica'', he was awarded the Royal Society's

Royal Medal The Royal Medal, also known as The Queen's Medal and The King's Medal (depending on the gender of the monarch at the time of the award), is a silver-gilt medal, of which three are awarded each year by the Royal Society. Two are given for "the mo ...

. He died in Rugby on 17 July 1878.Darwin correspondence database
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References

{{DEFAULTSORT:Oldham, Thomas 1816 births 1878 deaths 19th-century British geologists Royal Medal winners Alumni of Trinity College Dublin Alumni of the University of Edinburgh Fellows of the Royal Society Presidents of The Asiatic Society