Conversation so far:
what did George M.
Cohan do in George M.
Cohan's early career?
Cohan began writing original skits (over 150 of them.
what were some of his skits?
CANNOTANSWER.
who did he write for?
Soon he was writing professionally, selling his first songs to a national publisher in 1893.

Question: what was were some of his first songs?
Self-contained rewrite: What was were some of George M. Cohan's first songs?