I reviewed the dozen or so statements that are in the USAF's 1997 Report "The Roswell Report: Case Closed," which is the companion addition to their original 1994 Roswell report, and none of the guys they interviewed to make statements were stationed at Roswell in July 1947. The closest they got was about a year and half after the alleged UFO crash. One guy said he was in the Navy and stationed in NM in 1949 or 1950. They even included statements from 5 to 10 years after 1957.
Well, of course none of these guys saw anything at Roswell. LoL!