Proudfit, Isabel, 1898-1984 (Nombre personal)

The Ugly Duckling, 1941: title page (Isabel Proudfit)

OCLC, February 14, 2017 (access points: Proudfit, Isabel; Proudfit, Isabel, 1898- ; Proudfit, Isabel B.; Proudfit, Isabel Boyd; Proudfit, Isabel Boyd Mrs., 1898- ; Proudfit, Isabel Katharine Boyd, 1898- ; usage: Isabel Proudfit; Isabel Boyd Proudfit)

Social security death index, August 15, 2014 (Isabel Proudfit, b. April 16, 1898; d. May 1984)

The Hour, Norwalk, Conn., obituaries website, August 15, 2014 (Isabel B. Proudfit, b. April 16, 1898 in Evanston, Ill.; d. May 12, 1984 in New Britain, Conn.; journalist; children's author)