[2] After playing tackle on the freshman team,[2] Ewing lettered in football at the University of Nebraska under coach William C. "King" Cole in 1907, 1908, and 1909.

"[4] Ewing helped the 1907 Nebraska Cornhuskers to an 8–2 record and a share of the Missouri Valley Conference title.

[5] After finishing his playing days at Nebraska, Ewing joined the Cornhuskers coaching staff.

[4] In 1911, he was named director of athletics and coach at Morningside College in Sioux City, Iowa.

The following year, he took a coaching position in both football and basketball at South Dakota State College.

[7] In 1918 Ewing was named head coach of Ohio Wesleyan University where he eventually was promoted to associate professor of physical education and graduate manager.

[9] In 1922, he took a position as Professor of Physical Education and Director of Intercollegiate Athletics at Miami University.