Football referees

University of Denver (DU) Pioneers men's football player is tackled with the ball as teammates attempt to block. On the far left Willie Frank (43) is visible, and on the far right Jerry Nawrocki (61) can be seen.

University of Denver (DU) Pioneers men's football player is gang tackled by two opposing players as a third nears the pile. Pioneer players Roger Brandon (87) and Dick Gupton (31) are visible on the right side of the image.

University of Denver (DU) Pioneers men's football player Bob Miller (15) prepares to throw the football as teammates block rushing defenders. Richard Budil (36) can be seen making a diving block.

University of Denver (DU) Pioneers men's football player (21) runs with the ball to the left side as two opposing players, one standing and one diving, attempt to tackle him during a game in the University of Denver Stadium in Denver, Colorado.

University of Denver (DU) Pioneers men's football player Melvin Johnson (43) being brought down by multiple opponents as he runs up the middle with the ball. Teammate Danny Loos (31) can be seen in the backfield in a game in the University of Denver Stadium in Denver, Colorado.

A University of Denver Pioneers men's football player is tackled with the ball as a near-capacity crowd watches during a game at the DU football stadium in Denver, Colorado.

University of Denver Pioneers men's football defensive player tackles an opposing player (12) near the sidelines during a home game at the DU stadium in Denver, Colorado. A sign in the background reads: ''Football University of Denver 1954 Home Schedule: Fri. Sept. 17, Colorado College 8:15. Fri. Oct. 8, Montana 8:15. Fri. Oct. 22, Wichita 8:15. Fri. Oct. 29, New Mexico 8:15. Sat. Nov. 6, Brigham Young 1:30. Thurs. Nov. 25, Colo. A&M 1:30. Buy Season Tickets...and Save!''

University of Denver Pioneers football player (55) runs with the football as teammates (78) and (82) block for him during a game at the DU football stadium in Denver, Colorado.

University of Denver Pioneers football player (20) runs with the ball as teammate (31) blocks the opposition during a men's football game at the DU football stadium in Denver, Colorado.

Program for the University of Denver football game against Brigham Young University on Saturday, November 10, 1956 at University of Denver Stadium in Denver, Colorado. Program includes: team rosters, statistics, schedules, team and individual player portraits, school songs and yells.