[1] After he graduated from high school, he moved to Pittsburgh and then New York City, where he worked as an arranger in Tin Pan Alley and at night entertained at the Garden Café and accompanied various vaudeville shows.

He contributed the song (lyric by Ballard MacDonald) "Nix on the Glow Worm, Lena" to the Ziegfeld Follies of 1910.

"[3] He wrote several Broadway stage scores including some popular favorites: "I'm Always Chasing Rainbows" (based on a section of Fantaisie-Impromptu by Frédéric Chopin), "By the Beautiful Sea" and "There's a Girl in the Heart of Maryland.

"[4] Harry Carroll toured with vaudeville star Anna Wheaton for many years during this time.

[11] He died on December 26, 1962, in Santa Barbara, California,[12] survived by his second wife and 2 daughters and numerous grandchildren.