Manni,
Sorry for the confusion. I had put Charpier's IDPF on the Google Drive site as it was easy for Leendert to download it using the same link address, (it relates to a crash landing he is investigating) I did not think anyone was looking at the links anymore so was thinking I could avoid setting up a separate download folder for him.
As for the C-47 crash near Cologne, I think the men from the railhead company had been assigned to unload the gasoline from the C-47s when they landed. The gas was in Jerry cans, each contained a little more than 5 gallons of gas.
A photo of the unloading of a C-47. (Not sure those are ex-POWs doing the work, looks more like men in a segregated army support unit).
https://www.fold3.com/image/37241804...mewhere-in-ger
The "mission" symbols on the plane are interesting. Three glider tow missions?, Eight parachute drops (two for parachutists, and six for supply drops)?, and maybe below the line a Jerry can for a gasoline mission? Also the windows have the "porthole" in the center for parachutists to fire their rifles. I am not sure those were ever used by anyone during the war.