Following several concert seasons as an oratorio and song recital specialist, including the American premier of Mahler's Das Lied von der Erde, he traveled to Germany where he made his operatic debut in Hamburg as Cavaradossi in Puccini's Tosca in 1927.
He participated in the farewell gala on March 29, 1936, for Spanish soprano Lucrezia Bori, which was broadcast nationally and preserved on transcription discs.
Among these early electric recordings was a medley of The Student Prince by Sigmund Romberg, in which Crooks and Lambert Murphy alternated on the "Serenade."
He often said that his personal favorite was a 1928 recording of two arias by Richard Wagner: "In fernem Land" from Lohengrin and the "Prize Song" from Die Meistersinger von Nürnberg.
[2] Crooks also enjoyed making an album of Stephen Foster songs, which used authentic arrangements to recapture a vanished era of American music.
The recordings of Jesu, Joy of Man's Desiring (J. S. Bach) and For You With Love (Elinor Remick Warren) were made at a wedding in Southern California on April 8, 1967.
Actually, on November 15, 1968, Crooks sang in a performance with the Portola Valley United Presbyterian Church Choir at the Sequoias in Redwood City.
There have been additional CDs released by ASV and Jewel, which show the great diversity of Crooks's recordings, including selections from operettas and popular songs.