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- Subject is exactly "Curtiss P-1C Hawk"
[Pilots with Curtiss P-1C Hawk aircraft, Rickenbacker Airport, Sioux City, Iowa]
![[Pilots with Curtiss P-1C Hawk aircraft, Rickenbacker Airport, Sioux City, Iowa]](https://digitalcollections.museumofflight.org/files/square_thumbnails/575b18a79f1edd0cdfff1738a09d710f.jpg "[Pilots with Curtiss P-1C Hawk aircraft, Rickenbacker Airport, Sioux City, Iowa]")
Photographic group portrait of pilots, predominantly military, with a Curtiss P-1C Hawk aircraft, Rickenbacker Airport, Sioux City, Iowa, June 7, 1929. The men, including Julius A. Barr (fifth from right), are identified by rank and last name in the…