Gilbert, Douglas R., “Spectators at WCFL Concert in Chicago,” Digital Collections, accessed April 19, 2025, https://digitalcollections.library.gvsu.edu/document/43498.
Black and white photograph of audience members at the WCFL Big 10 Summer Music Festival in Chicago, Illinois on July 18, 1970, by Douglas R. Gilbert. A man in an unbuttoned shirt and cut-off shorts is mid-air after being tossed up from a blanket held by a group of people as others look on. Scanned from the negative.