This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
rfc royal corps pilot flying aviator aviators william portwood erwin williamportwooderwin william p. erwin williamperwin william erwin williamerwin erwin fighter ace fighterace bill erwin billerwin w.p. erwin wperwin blackandwhite groupshot people monochrome outdoor black and white hoto from the Paul A. Smith Special Collection. Most