Later, he wrote the original plans for what became the Wright State University School of Medicine.

After serving in the U.S. Navy until October 1945, he graduated from the University of Minnesota in 1949 and subsequently gained his MD in 1953.

Soon C. Walton Lillehei, who worked nearby, abandoned his technique of cross-circulation via a parent as a method of diverting blood through an external circuit.

Silicon antifoam and Mayon polyethylene tubing were two important components of this Lillehei-DeWall bubble oxygenator.

[7] A replica of his first oxygenator is on display at the National Museum of American History at the Smithsonian Institution.