In Vaudeville, Jerry, Hele, Josephine & George M. were "The Four" these
Cohan began his career as a child, 
performing with his parents and sister in a vaudeville act known as "The Four ... 
George's parents were traveling vaudeville performers, and he joined them... [DOC] [TLE] Early years: 1878-1900 - George M. Cohan In America's Theater [PAR] George M. Cohan was the third child born to Jerry and Helen Cohan.