Who was Walter Camp? Here is a little bio on the "Father of American Football".
Walter Chauncey Camp (April 7, 1859 – March 14, 1925) was an American football player, coach, and sports writer known as the "Father of American Football". He invented the sport's line of scrimmage and the system of downs. With John Heisman, Amos Alonzo Stagg, Pop Warner, Fielding H. Yost, and George Halas, Camp was one of the most accomplished persons in the early history of American football. He played college footballat Yale College from 1876 to 1882, after which he briefly studied at Yale School of Medicine. Camp served as the head football coach at Yale from 1888 to 1892 before moving to Stanford University, where he coached in December 1892 and in 1894 and 1895. Camp's Yale teams of 1888, 1891, and 1892 have been recognized as national champions. Camp was inducted into the College Football Hall of Fame as a coach in 1951.
(From Wikipedia)