[2] In 1937 He married Neva Mary Peoples; a pianist, actress and a vocalist of San Francisco, Ca.

He supported Lena Horne, Frank Sinatra,[3] Bobby Short, Marshal Royal, Irving Ashby,[4] Julie Wilson, Gene Sedric,[5] Les Hite, and Helen Gallagher.

[9] Moore served as vocal coach for other performers in Hollywood, including Marilyn Monroe and Ava Gardner.

[citation needed] These included Ziegfeld Girl, Dumbo, Three Cheers for the Boys, Panama Hattie, Presenting Lily Mars, Cabin in the Sky, the 1944 production of Kismet, and This Gun for Hire.

He was a movie industry vocal and stagecraft grooming coach in the early careers of many, most notably Dorothy Dandridge and Marilyn Monroe.