Photograph of John F Maulbetsch, circa 1914-1916, University of Michigan football player. Source is image at the College Football Hall of Fame web site. As this photograph was published prior to 1923, it is believed to be in the public domain in the United States. Even where not in public domain, the limited use of the image solely for non-profit, educational use in the article John Maulbetsch is believed to constitute fair use. Prior to any commercial use, permission should be sought from the College Football Hall of Fame and/or the copyright holder.