I'm trying to find information on a great uncle who was KIA while serving the USAAF on September 9, 1944. Does anyone know of loses suffered by the 8th AAF 491st BG-H 854th BS on that day? Additionally, while I know that BG-H is bomb group heavy (or something like that), what exactly does BS stand for? Bomber squadron? Please excuse my ignorance, and any help you can offer would be appreciated.