In addition to his coaching duties, Davison was an associate professor in the physical education department, head golf coach, assistant football coach, head of the physical education department, and athletic director. Before beginning his university duties, Davison taught science for one year at WASHINGTON MIDDLE SCHOOL and one year at DUBUQUE SENIOR HIGH SCHOOL.
Davison coached twenty-seven years for the University of Dubuque. In 1995 CLARKE COLLEGE announced that Davison would begin coaching basketball for their Crusaders. In 2006 Davison was honored as the Northern Illinois-Iowa Conference coach of the year after guiding the Crusaders to the first league championship in the program's 21-year history. Davison hit a milestone in November, 2007 when his Crusaders handed him his 500th collegiate coaching victory with an 84-71 victory over No. 8 (NCAA Division III) LORAS COLLEGE in the first game played in the new Duhawks' Athletic Wellness Center.
Davison announced his retirement in 2008. The University of Dubuque officially dedicated Jon Davison Court in the Stoltz Sports Center on Saturday, February 7, 2009.