Gilbert, Douglas R., “Groundbreaking of Grand Valley State College,” Digital Collections, accessed April 6, 2025, https://digitalcollections.library.gvsu.edu/document/53137.
Black and white photograph of L. William Seidman, Michigan governor John B. Swainson, and James H. Zumberge gathered on stage for the groundbreaking ceremony of Grand Valley State College on August 28, 1962 in Allendale, Michigan. Scanned from the negative.