 Hollenback served as the head football coach at Pennsylvania State University (1909, 1911–1914), the University of Missouri (1910), Pennsylvania Military College, now Widener University (1912, 1915), and Syracuse University (1916), compiling a career college football record of 46–19–8.He was inducted into the College Football Hall of Fame as a player in 1951.Born in Blue Bell, Pennsylvania, Hollenback attended Phillipsburg High School.