As an athlete at NAU (then Arizona State Teacher College), the Lumberjacks were 12-4 against ASU and 4-6 against Arizona in basketball. "Sturg" averaged 7.2 points per game over his career, nearly on fourth the total points scored by the whole team, that averaged 30.7 points per game. He also played football while at NAU. After graduating from ASTC, Sturg was a teacher/coach at Globe from 1932-40. In 1935, he helped coach the first group of Arizona All Stars, which beat a Chicago All-Star team 13-12 in Phoenix. His football, basketball and baseball teams were frequent participants in the state playoffs, and his 1938 football team won the Arizona State Championship. He was also the Flagstaff Schools Superintendent for 27 years, during which time he was instrumental in de-segregate the local school district. One of Flagstaff's schools is even named for him. Cromer was also a founding member and president of the Arizona Interscholastic Association (AIA), which governs high school activities in the state today.