In April 1945, W. Averell Harriman, then of the US State Department, offered the Swedish government help in inquiring about Wallenberg's fate, but the offer was declined.
Aprillis 1945 pakkus William Averell Harriman USA Riigidepardemangust Rootsile abi Wallenbergi saatuse selgitamiseks, kuid pakkumisest keelduti.