Sister Gertrude Holtz, OSB papers, OSBCHI-D-HOLTGERT. Benedictine Sisters of Chicago Archives.
Sister Gertrude Holtz, OSB papers, OSBCHI-D-HOLTGERT. Benedictine Sisters of Chicago Archives. https://osbchicagoarchives.libraryhost.com/repositories/2/resources/66 Accessed November 21, 2024.
