Christopher O'Brien (October 23, 1881 – June 3, 1951) was a Chicago, Illinois house painter and plumber who became a pro football franchise owner. He is mostly known as the owner of the Chicago Cardinals (later known as the St. Louis Cardinals, and now the Arizona Cardinals), and has been called the "Father of Professional Football in Chicago". O'Brien was also a co-founder of the American Professional Football Association (renamed the National Football League in 1922) by representing the Cardinals (then called the Racine Cardinals) at the September 17, 1920, league meeting at Ralph Hay's Hupmobile dealership in Canton, Ohio.
Early Cardinals ownership
In 1898, O'Brien organized the Morgan Athletic Club. He and his brother Pat also played on the squad. Chris then changed the club's home games to nearby Normal Field, prompting the new name the Normals. That same year O'Brien gave the team its longstanding moniker when he, finding a bargain, bought used football jerseys from the