Michael N. Butera wrote:

>Hmmm . . . William Schuman did write "The Mighty Casey: A One Act Opera",
>a setting of Thayer's classic poem.  A recording was (is?) available on
>Delos (DE 1030) performed by Gerard Schwarz conducting the Julliard Opera
>Center and Julliard Orchestra.  "The Mighty Casey" is coupled with
>Schuman's "A Question of Taste."

Also of related interest

Sylvan Levin: Babe Ruth Suite for Narrator and Orchestra
George Kleinsinger: Brooklyn Baseball Cantata for Baritone, Chorus and Orch.

Karl