Grand Rapids Art Gallery, Catalogue of the Mathias Alten Memorial Exhibition October 4th - October 31, 1938.
No author noted, "Married Fifty Years Tuesday," The Grand Rapids Herald , May 20, 1918, Morning ed., pg. 5, col. 3.
No author noted, "Grand Rapids Art Association Memorial Exhibition," Grand Rapids Mirror Magazine, March-April 1939, Vol. VI, No. 2, pg.9.