William John Hamilton

William John Hamilton (5 July 1805 – 27 June 1867) was a British geologist who served as a Conservative Member of Parliament.

Early life Hamilton was born in Wishaw, Lanarkshire on 5 July 1805. He was the eldest son of William Richard Hamilton, FRS, and the former Julia Udny. His younger brothers were Alexander Edmund Hamilton (who drowned in India in 1827),

His paternal grandfather was Anthony Hamilton, the Archdeacon of Colchester. His maternal grandparents were John Udny, British Counsul at Venice and Leghorn, and Selina Shore Clevland (a daughter of John Clevland MP). His uncle, Lt.-Col. John Robert Fullerton Udny inherited Udny Castle in Aberdeen from his uncle, Robert Udny, the prominent merchant and art collector.

He was educated at Charterhouse School and the University of Göttingen.

Hamilton was president of the Royal Geographical Society for 1848–1849 and of the Geological Society between 1854 and 1866. He was elected a Fellow of the Royal Society in 1855. He was elected as a member of the American Philosophical Society in 1862.

He made excursions in France and Belgium and wrote on the rocks and minerals of Tuscany, the agate quarries of Oberstein, and on the geology of the Mayence basin and the Hesse-Kassel (or Hesse-Cassel) district.

Personal life On 26 April 1832, Hamilton married Martin Trotter, a daughter of John Trotter. Before her death in March 1833, they had a son:

Margaret Wilhelmina Hamilton (d. 1915), who married Louis Eric Ames, son of Henry Ames of Linden. Constantine Henry Hamilton (1843–1885), a Lieutenant-Colonel in the Royal Artillery who died unmarried.

Hamilton died in London in 1867; his wife survived him.

Descendants As his son Alexander died without surviving male issue, his grandson Robert Hamilton-Udny (son of his youngest son Archibald), inherited the title of 11th Lord Belhaven and Stenton.