Sister Mildred Callahan, OSB papers, OSBCHI-D-CALLMILD, Folder: OSBCHI-D-CALLMILD-0. Benedictine Sisters of Chicago Archives.
Sister Mildred Callahan, OSB papers, OSBCHI-D-CALLMILD, Folder: OSBCHI-D-CALLMILD-0. Benedictine Sisters of Chicago Archives. https://osbchicagoarchives.libraryhost.com/repositories/2/resources/102 Accessed April 27, 2025.
