In Vaudeville, Jerry, Hele, Josephine & George M. were "The Four" these
[DOC] [TLE] George M. Cohan, 64, Dies at Home Here - The New York Times [PAR] George M. Cohan, the Yankee Doodle Dandy of the American stage who gave .... 
On one of these occasions, George M., at the age of 15, made his Broadway ... 
Jerry and Helen Cohan, his parents, did another act at the same theatre the same 
week.