In the very incomplete IDPF online files, there is a 175 page IDPF for Virgil Biggs. He was on 43-37620 (buried as unknown at Bachen and identified after the war. )
https://catalog.archives.gov/id/330475439
The file can be downloaded as a pdf file. Sometimes there is information on other airmen in the IDPF files, so maybe worth a look.
Have you tried to get any IDPF files for any of the men? You could try commericial vendors but they will not be free.
Rolland