Sure about that? He was for sure wanted for interrogation and wasn't captured until early May 45 and approval for his transfer to US was until late June 45. Only after the war ended were US politicians pursuaded to expand the taking of German specialists due to fear of losing them to the Ruskies.
The
Joint Chiefs of Staff (JCS) established the first secret recruitment program, called
Operation Overcast, on
20 July 1945
In a secret directive circulated on 3 September 1946, President Truman approved Operation Paperclip and expanded it to include one thousand German scientists under “temporary, limited military custody”
By 1947 this evacuation operation had netted an estimated 1,800 technicians and scientists, along with 3,700 family members. Those with special skills or knowledge were taken to detention and interrogation centers, such as one code-named DUSTBIN, to be held and interrogated, in some cases for months.
Osenberg List
The list was eventually found by the Allies in a University of Bonn toilet in March 1945. Someone had tried to flush it down the toilet. A soldier found it, he gave it to his commanding officer and it wound up in the hands of scientific intelligence teams. So that list became incredibly important to Paperclip, and most of the scientists culled by the Americans over the next decade were part of that list.
Initially each scientist was offered a one-year contract to work for the US government; in August 1945, 127 men accepted this and moved to the US. The movement of the scientists and their families started in September 1945.