At Global Sound, check out 1,2, 3 and a Zing Zing Zing (1953), a collection of children's playground rhymes, or his classic New York 19 (1954), recordings of speeches, conversations and songs heard on city streets—hear Schwartz interview an elderly woman, the grocer and a plumber in the track, "Music in Speech."
A personal favorite of mine is An Actual Story in a Dog’s Life (1958), which aired on the CBS Radio Network that year. From the album, you’ll learn about Tony, his wired-hair terrier Tina, and his dog’s mother and father, Fanny Fishelson and Chip O’Hara. "I recorded all the sounds of all the situations that 'Tina' led me into," Schwartz writes in the liner notes.
This from the guy who scared us near half to death with a daisy.
(Daisy girl image courtesy of Conelrad. Album cover courtesy of Smithsonian Folkways.)