Most of them predated the Nazis, the rocketeer community was thriving in the Weimar Republic. Also fun fact my great grandfather was part of one of the R&D projects that worked on V1s and V2s, his notes were looked over by Von Braun after the war. He got an angry thank you letter because my great grandfathers notes were basically him insulting the engineering and material quality while making suggestions for improvement.
Edit: I failed to mention my great grandfather was in the US Navy, he was in Florida at the time he wrote the notes I think.
Most of them predated the Nazis, the rocketeer community was thriving in the Weimar Republic. Also fun fact my great grandfather was part of one of the R&D projects that worked on V1s and V2s, his notes were looked over by Von Braun after the war. He got an angry thank you letter because my great grandfathers notes were basically him insulting the engineering and material quality while making suggestions for improvement.
Edit: I failed to mention my great grandfather was in the US Navy, he was in Florida at the time he wrote the notes I think.