choir Boston Boy Choir
choir New England Conservatory Chorus
conductor Erich Leinsdorf
engineer [recording] Ed Begley
liner notes Neville Cardus
mezzo-soprano vocals Shirley Verrett
orchestra Boston Symphony Orchestra
producer Richard Mohr
The two discs are separate but the liner notes are continous from one to the other and the sleeves state Record 1 and Record 2, so they are clearly intened to be regarded as a pair.