The Dictionary of Australasian Biography/Seymour, David Thompson
Seymour, David Thompson, Commissioner of Police, Queensland, third son of Thomas Seymour, of Ballymore Castle, co. Galway, by Matilda Margaret, daughter of Walter Lawrence, was born at Ballymore Castle in 1832, and educated at Ennis College. He arrived in Queensland on Jan. 13th, 1861, bringing a detachment of the 12th Regiment, in which he held a commission as lieutenant, this being the first arrival of military after the separation of the colony from New South Wales. The same year he was appointed aide-de-camp and private secretary to the Governor, Sir George Bowen, and held the position two years. On Jan. 1st, 1863, he became Commissioner of Police for the colony, and in August 1878 a member of the Brisbane Relief Board, both of which appointments he now holds.