Dr Thomas John Jehu FRSE FGS (1871 – 18 July 1943) was a British physician and geologist. The Jehu-Campbell Fossil Collection within Edinburgh University was donated by Jehu in combination with Robert Campbell and is now the main component of their “Highland Border Series” of fossils. A large number of the fossils come from the Aberfoyle area.
He was born in Llanfair Caereinion in Wales in 1871, the son of John Jehu. He was educated at Oswestry High School. He then studied Medicine at Edinburgh University graduating MB ChB in 1893.
He did a further year of Science gaining a further degree (BSc) then went to Cambridge University, where he gained a further MA in Science. Despite gaining is doctorate as a physician (MD) he chose an academic life, first lecturing in Geology at St Andrews University then moving to Edinburgh University in 1914.
In 1904 he unsuccessfully tried for the chair in Geology at Glasgow University but lost to John Walter Gregory. In 1905 he was elected a Fellow of the Royal Society of Edinburgh. His proposers were James Geikie, Ben Peach, John Horne, and Ramsay Heatley Traquair. He won the Society’s Keith Prize for the period 1925-27 and served as their Vice President 1929-32.
In 1914 he succeeded Prof James Geikie as professor of Geology at Edinburgh University. In 1932 he oversaw the trasferof his department from Old College to King's Buildings where it was thereafter housed in the Grant Institute due to its endowment by Sir Alexander Grant.