In 1947 Marcus Wallenberg turned down President Harry Truman's offer to help locate Raoul with an offhanded remark: "He is probably dead by now."

https://ia903001.us.archive.org/18/items/alawuntoitselftheuntoldstoryofthelawfirmofsullivan/A%20law%20unto%20itself%20%20the%20untold%20story%20of%20the%20law%20firm%20of%20Sullivan%20.pdf