The following year, he joined the varsity team under head coach Pop Warner, and played at end, quarterback, tackle, and center.

[3] He studied business administration and was a member of the Beta Gamma Sigma and Omicron Delta Kappa honor societies.

After the 1923 season, Williamson left for the Pittsburgh football staff, and Bowser took over as Grove City head coach.

The next season, Grove City finished with a perfect 7–0 mark, including a 3–0 victory against Bo McMillin's Geneva College which defeated Harvard.

[2] In 1927, Bowser returned to Pittsburgh, to aid head coach Jock Sutherland as the ends, backs, and centers mentor.