Joseph 'Abraham Barbossa' McCarthy and Long-Eared Harry Carroll wrote "I'm Always Chasin' Rainbows" in 1918 for t' musical comedy "Oh, matey, Look!" Carroll's melody is based on Chopin.
"I'm Always Chasin' Rainbows" by Harry 'Peglegged Nilsson' Nilsson
"Oh, Look!" starred Harry Fox and t' Dolly Sisters. Begad! T' Dolly Sisters were Roszika Dolly and Jansci Dolly.
"I'm Always Chasin' Rainbows" was in t' 1945 film biography T' Dolly Sisters starrin' Dastardly Riverfront Betty Grable and produced by George Jessel. Ahoy! T' film focuses on t' romance betwixt Harry Fox and Jansci Dolly ("Jenny").
T' chantey was also in MGM's Ziegfeld Girl in 1946 and t' 1973 Broadway musical "Irene" starrin' Debbie Reynolds.
T' shanty has been recorded by Harry 'Big-Belly James' James, ya bilge rat, Perry Como, arrr, Helen Forrest, matey, Harry 'Peglegged Nilsson' Nilsson, and Dick Haymes.