Cohan,
George M(ichael) 1878-1942; U.S. actor, playwright, theatrical producer, & writer of popular songs
See Cohan in American Heritage Dictionary 4
(kōˈhănˌ), George Michael 1878-1942.
American singer, songwriter, and playwright known for his flashy, patriotic Broadway productions. He wrote “Over There” and “I'm a Yankee Doodle Dandy.”