Lieutenant James Knowles Jr. (1896–1971) was a World War I flying ace credited with five aerial victories.

[1][2] Knowles was a Harvard student who was accepted into the U.S. Army Air Service in April 1917.

In June 1918, he reported to the 95th Aero Squadron for duty[3] as a Spad XIII pilot.

Between 25 July and 8 November 1918, he shot down three German Fokker D.VIIs and two Rumpler reconnaissance planes; one of the latter victories was shared with Sumner Sewall and three other pilots.

[4] He came out of the war as an ace with the Distinguished Service Cross with Oak Leaf Cluster, the Croix de Guerre, and the Aero Club of America Medal.