After graduating from Illinois, Omer became a school teacher. He then coached track and worked in the athletic department at Northwestern University from 1911 to 1917.[4] He joined the United States Army in 1917, reached the rank of major, and was discharged in 1921.[4]
From 1921 to 1936, Omer was the athletic director at Carthage College in Carthage, Illinois.[4] He was also the head coach for the Carthage Red Men football team for 15 seasons, from 1921 until 1935 compiling a record of 51–52–18.[5][6] Omer later served as a mathematics professor at Carthage.[4]
^Illinois State Historical Society (1988). "Illinois Historical Journal". Illinois State Historical Society Membership. 81. Illinois State Historical Society. ISSN0748-8149. Retrieved January 9, 2017.
^Illinois State Historical Society (1988). "Illinois Historical Journal". Illinois State Historical Society Membership. Illinois State Historical Society. ISSN0748-8149. Retrieved January 9, 2017.