Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Obert Clark "Butch" Logan (December 6, 1941 - January 21, 2003) was a former American football Safety in the National Football League for the Dallas Cowboys and the New Orleans Saints. He played college football for Trinity University. Logan, whose nickname was "The Little O", was the last person in the NFL to wear the single digit 0 before its use was discontinued by the league.