After marrying and returning to Kansas, Jump started a uniform manufacturing company with his wife Florence, and had a daughter, Marjorie.

He finished his studies at the University of California, Berkeley's School of Military Aeronautics, graduating on July 8, 1918, and proceeded to train for the war effort.

Jump was prepared to serve as an Army Air Corps pilot, having received his Reserve Military Aviator rating, but the war ended before he was able to engage in any dogfights against Germany.

He was able, however, to fly over Los Angeles for a war bond drive in 1918, along with classmate and future aviation pioneer Walter Varney.

In 1924, the couple formed a uniform manufacturing company, Arotex Co.[1][4] Jump served as city commissioner of Wichita from 1949 until 1952, when he became mayor, succeeding Floyd Throckmorton Amsden.

[5] During his time in political office, which lasted through 1953, he was instrumental in negotiating the sale of the local airport to the United States Air Force.