
Is that Goddard?
Goddard's interaction with Von Braun and Oberth of the Vereinigung fur Raumschifahrt (society for rocket flight) is well documented in This High Man, a book about Goddard.
They essentially got their start from him. They couldn't understand why American Intelligence people kept asking them questions after the war that Goddard had given them the answers to in the early 1930's - why don't you ask your own guy, they said, don't you know he's the one who came up with it?
Von Braun was a hard line manager and engineer, not a great innovator.