Gilmore was heard in films as the voice of President
Franklin Delano Roosevelt in the 1942 production of
Yankee Doodle Dandy, and in
The Gallant Hours (1960), where he was the narrator for
Japanese sequences. His dramatic voice was also heard on countless film trailers beginning in the 1940s (he narrated the trailer for the 1946 film
Gilda), and on documentary films throughout the 1950s and 1960s. (He appeared on camera at the beginning of the trailer for the 1948 thriller
The Big Clock.) He narrated the
Joe McDoakes series of short comedies which starred
George O'Hanlon, notably
So You Want to Be a Detective (1948), in which he participated (with the camera as his point of view). Gilmore also served as the president of
American Federation of Television and Radio Artists (AFTRA) from 1961 until 1963. ==Recordings==