John Francis Shirk (June 24, 1917 – November 11, 1993) was a professional American football end and defensive end in the National Football League (NFL). He was drafted in the fourth round of the 1940 NFL Draft. He played one season for the Chicago Cardinals. During World War II, he served as a captain in the field artillery. During the invasion of Salerno, he was captured and held in the German prisoner of war camp Oflag 64 in Poland.

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1917 births 1993 deaths American football defensive ends American football ends Chicago Cardinals players Oklahoma Sooners football players Oklahoma Sooners men's track and field athletes United States Army personnel of World War II American prisoners of war in World War II United States Army officers World War II prisoners of war held by Germany Players of American football from Oklahoma City {{Widereceiver-1910s-stub