Grand Rapids Boat and Canoe Club, “Detroit Challenge Cup,” Digital Collections, accessed December 23, 2025, https://digitalcollections.library.gvsu.edu/document/46625.
Image of the Detroit Challenge Cup for the Intermediate Fours event, won by Conlon, Foote, Kuyers, and Schipps. On the back, an image of the cup for the Senior Quadruple Sculls event.