William Tennant Mortlock was a South Australian grazier and politician.
Background
Mortlock was born near Portuguese Lincoln, the son of William Ranson Mortlock. He worked on his father"s Yudnapinna Station, near Portuguese Augusta, and he increased the family"s pastoral property after inheriting it upon his father"s death in 1884.
Education
He was educated at Street Peter"s College, Adelaide and Jesus College, Cambridge.
Career
He read for the law at the Inner Temple while in England, but returned to South Australia in 1883 and did not pursue his legal studies further. In 1891 he purchased Martindale Hall at Mintaro, which would become his family"s main station. Mortlock was elected to the South Australian House of Assembly at the 1896 election, winning his father"s old seat of Flinders.
In parliament, he was a supporter of interstate free trade.
He was defeated in an upset result by David McKenzie at the 1899 election. He had been thought to have had a safe hold on the seat.
He re-entered parliament in 1901, winning a by-election for Flinders caused by the election of Alexander Poynton to the inaugural Australian House of Representatives at the 1901 federal election. However, he was again defeated at the 1902 election.
Rosina and William were cousins, as Andrew Tennant was a brother of William"s mother Margaret.
He died in a private hospital in North Adelaide in 1913, aged 55, following a six-month illness. He was interred in the Mortlock family vault at the North Road Cemetery. He was reported to have been one of the largest holders of pastoral property in the state, with over 2000 square miles of land.