Opened at the Mansfield Theatre on May 18, 1937. Ran 15 performances, to about June 1937. Sea Legs is an American musical with music by Michael H. Cleary and lyrics by Arthur Swanstrom. The musical book by Swanstrom is based on the play The Cat Came Back by Laurence E. Johnson, Beula King, and Avery Hopwood. Produced by Albert Bannister and J. Edmund Byrne, the production opened on Broadway at the Mansfield Theatre where it ran from May 18, 1937, through May 29, 1937 for a total of 15 performances. Wiki link