Although Rademacher had held a full professorship in Germany for ten years before immigrating to the United States, he was offered only an assistant professorship at Pennsylvania in 1935.
Kahit Rademacher may hawak na isang buong pagkapropesor sa Germany para sa sampung taon bago immigrating sa Pilipinas, siya ay inaalok lamang ng isang assistant pagkapropesor sa Pennsylvania in 1935.