[1] In 1940, he joined the Canadian Armed Forces and served in the 1st and 2nd Regiments, participating in both the Italian campaign and the liberation of Holland.
After returning to Canada, he began a turkey farm, then a successful real estate business.
[1][2] Thrasher ran for office in the 1963 provincial election as the Progressive Conservative candidate in the riding of Windsor—Sandwich.
[4] Thrasher served as a backbench supporter in the majority PC government led by Premier John Robarts.
[5] After leaving politics, he returned to his farm where he bred and raced thoroughbred horses.