The ‘forefather’ of the Ladd School was Dr. Walter Fernald, a leading member of the New England Eugenics Movement. Fernald was the resident overseer for the Massachusetts School for Idiot Children, later named the Walter E. Fernald State School following his death, in Waltham, MA.
My friend who brought me to the Ladd School had previously explored the ruins of the Fernald School and found the tape featured above. It features a collection of funky Caribbean rhythms. While the cover indicates that the album is titled Super Sounds, the side of the cassette is labeled John Boy.