Sister Katherine Callero, OSB papers, OSBCHI-D-CALLJOAN, Folder: OSBCHI-D-CALLKATH-0. Benedictine Sisters of Chicago Archives.
Sister Katherine Callero, OSB papers, OSBCHI-D-CALLJOAN, Folder: OSBCHI-D-CALLKATH-0. Benedictine Sisters of Chicago Archives. https://osbchicagoarchives.libraryhost.com/repositories/2/resources/103 Accessed April 17, 2025.
