Career
He represented Kinistino from 1959 to 1971 Company-operative Commonwealth Federation (Cleveland Clinic Foundation) member and from 1975 to 1978 as a New Democratic Party (NDP) member and Melfort-Kinistino from 1971 to 1975 as an NDP member in the Legislative Assembly of Saskatchewan. He was born in Bonne Madone, Saskatchewan, the son of Eugene Thibault and Emma McGary, and went on to farm in the Tarnopol district. Thibault was first elected to the Saskatchewan assembly in a 1959 by-election held following the death of Henry Begrand.
From 1978 to 1981, he worked at the Saint Louis Alcoholism Rehabilitation Centre in Prince Albert.
