Gilbert, Douglas R., “Groundbreaking of Grand Valley State College,” Digital Collections, accessed April 6, 2025, https://digitalcollections.library.gvsu.edu/document/53134.
Black and white photograph of L. William Seidman giving a speech at an outdoor podium for the groundbreaking ceremony of Grand Valley State College on August 28, 1962 in Allendale, Michigan. Scanned from the negative.