Career
Desfosses ran for a seat to the Alberta Legislature in a by-election held on June 21, 1951 in the Grouard electoral district. He defeated two other candidates in a hotly contested race on second vote preferences to pick up the seat for the provincial Liberals. Just over a year later Defosses ran for a second term in office in the 1952 Alberta general election.
Defosses ran for a third term in the 1955 Alberta general election.
On the second vote count Defossess easily held his seat defeating two other candidates. Defosses retired from the legislature at dissolution of the assembly in 1959.
