"Carl Sheldon Williams" is a guide that explores the life and career of Carl Sheldon 'Cap' Williams, a remarkable American football player and coach. Williams, born in Wellington, Ohio, graduated from the University of Pennsylvania, where he was active both as a player and a coach. The guide provides insights into his athletic achievements, including his time at Oberlin College and the University of Pennsylvania, where he played under the legendary coach John Heisman. Notably, Williams served as captain of the Oberlin Yeomen, who had an impressive record in the 1892 season and defeated Ohio State University. The content of the book is primarily based on articles from Wikipedia and other free sources, making it an informative read for sports enthusiasts and history buffs.