I have a number of sources. I have the list of all WWII KIA's which listed your uncle and showed the Cemetary in Belgium and the fact he was in the AAF. I then looked in a book I have about the 8th AF and found his unit and date ofdeath . I then looked on the web for sites about the 446th and found it! It only takes a little detective work for those familier with this type of research.