Pro Football: Its Ups and Downs, published in 1934, is a novel by Dr. Harry March that was the first ever attempt to write a history of professional American football. March had served in several executive offices with the New York Giants of the National Football League in the late 1920s and was a founder of the second American Football League. The book, while popular and entertaining with some important information and interesting anecdotes, is often viewed as inaccurate by modern sports historians. Jack Cusack, manager of the Canton Bulldogs from 1912 to 1917, summed up the book's flaws by stating; "In my library is a book... entitled Pro Football: Its "Ups and Downs" and in my opinion it is something of a historical novel."