 John T. Godfrey, Col. Charles W. Stark, Maj. Gerald W. Johnson, and Col. Einar Axel Malmstrom, among many others.He was also asked to interrogate Lt. Martin J. Monti, who later pleaded guilty to treason against the United States for his activities during the war.Scharff was asked to testify during his trial in the U.S. in 1948.