Jack Hollenback

John Coffey "Jack" Hollenback (August 10, 1884 – 1959) was an American football player and coach. He served as the head football coach at Franklin & Marshall College from 1908 to 1909, Pennsylvania State University in 1910, and Pennsylvania Military College, now Widener University in 1911, compiling a career college football record of 21–11–3. He was the older brother of Bill Hollenback, who was also a head football coach at Penn State.

Franklin & Marshall
Hollenback was the head college football coach for the Franklin & Marshall Diplomats located in Lancaster, Pennsylvania. He held that position for the 1908 and 1909 seasons.His coaching record at Franklin & Marshall was 13 wins, 7 losses and 1 tie.As of the conclusion of the 2010 season, this ranks him #11 at Franklin & Marshall in total wins and #9 at the school in winning percentage (.640).