Stone and his wife, Allene Crater, whom he met in the company of "The Wizard of Oz", had three daughters, Dorothy, Paula, and Carol. Crater also appeared, in a small part, with Stone in "Jack O'Lantern". A "Vanity Fair" review of the play said of Crater: "My only complaint is that the structure of the entertainment makes it impossible for Allene Crater, who in the little bit she does shows herself one of the most refreshing comediennes on the musical stage, to have a really good part." As an adult, Dorothy became her father's stage partner.