Leon Albert "Jake" "The Bullfrog" Swirbul[1] (March 18, 1898 – June 28, 1960), was an aviation pioneer and co-founder of Grumman Aircraft Engineering Corporation.
^U.S. Marine Corps Enlistment Records. Series: Official Military Personnel Files, 1905 - 1998. Retrieved 2019-02-23 – via National Archives.
Leon Albert "Jake" "The Bullfrog" Swirbul (March 18, 1898 – June 28, 1960), was an aviation pioneer and co-founder of Grumman Aircraft Engineering Corporation...
Swirbul (Latvian: Zvirbulis) is a surname. Notable people with the surname include: JakeSwirbul (1898–1960), American aviation pioneer and co-founder...
ex-Loening Aircraft employees, (Edmund Ward Poor, William Schwendler, and JakeSwirbul) started their own company in an old Cox-Klemin Aircraft Co. factory...
continue working for Keystone, Grumman joined fellow Loening employees JakeSwirbul and William Schwendler in resolving that their best option was to quit...
Battle of Midway veteran F4F Wildcat pilots and Grumman vice president JakeSwirbul at Pearl Harbor on 23 June 1942. At the meeting, Lieutenant Commander...
Heritage Command - F4F VectorSite Wildcat Entry How Leroy Grumman and JakeSwirbul built a high-flying company from the ground up Grumman Wildcat Retrieved...
Throughout early 1942, Leroy Grumman, along with his chief designers JakeSwirbul and Bill Schwendler, worked closely with the U.S. Navy's Bureau of Aeronautics...
Grumman's future founder, Leroy Grumman, who had hired both Grumman and JakeSwirbul to work in his own aircraft firm in 1928 – after the Loening Aeronautical...
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