Background
He was born in Alfred, Ontario and became a physician by career after studying at Regina Collegiate Institute and McGill University where he received his medical degrees (MDCM, FIAM).
He was born in Alfred, Ontario and became a physician by career after studying at Regina Collegiate Institute and McGill University where he received his medical degrees (MDCM, FIAM).
He was first elected to Parliament at the Regina City riding in the 1949 general election. After serving one term, he was defeated by Claude Ellis of the Company-operative Commonwealth Federation in the 1953 election. McCusker was also unsuccessful in the 1957 election where he attempted to unseat Ellis.