Merrill, Robert H., 1881-1955, “Jonio pelvis bones in plaster,” Digital Collections, accessed March 31, 2025, https://digitalcollections.library.gvsu.edu/document/50388.
Black and white photograph of four men working on the mammoth skeleton excavation site at Jonio Farm. At the left, a man leans over a mammoth pelvis bone in plaster.