The photo was taken by Horace Bristol (1908-1997). In 1941, Bristol was recruited to the U.S. Naval Aviation Photographic Unit, as one of six photographers under the command of Captain Edward J. Steichen, documenting World War II in places such as South Africa, and Japan.
He ended up being on the plane the gunner was serving on, which was used to rescue people from Rabaul Bay (New Britain Island, Papua New Guinea) when this occurred.
In an article from a December 2002 issue of B&W magazine he remembers: “…we got a call to pick up an airman who was down in the Bay.
The Japanese were shooting at him from the island, and when they saw us they started shooting at us. The man who was shot down was temporarily blinded, so one of our crew stripped off his clothes and jumped in to bring him aboard. He couldn’t have swum very well wearing his boots and clothes.
As soon as we could, we took off. We weren’t waiting around for anybody to put on formal clothes. We were being shot at and wanted to get the hell out of there. The naked man got back into his position at his gun in the blister of the plane.”