 Egan's first job was a bank clerk, but he soon moved on to be a staff writer for Ginnells Music Co. in Detroit.Beginning in the 1910s, he and Whiting wrote many popular songs, including "Till We Meet Again", "The Japanese Sandman" and "Ain't We Got Fun".Egan wrote songs for Vaudeville and for Broadway acts, including Robinson Crusoe, Jr., Silks and Satins, Holka Polka and Earl Carroll’s Sketch Book of 1935.