He was an Assistant United States Attorney of the Southern District of New York, Civil Division from 1934 to 1936.
He was Chief of the Criminal Division of the United States Attorney's Office for the Southern District of New York from 1936 to 1938.
He was Chief Assistant United States Attorney of the Southern District of New York in 1938.
He was the acting United States Attorney for the Southern District of New York from December 1938 to March 1939.
[1] Noonan received a recess appointment from President Harry S. Truman on October 21, 1949, to the United States District Court for the Southern District of New York, to a new seat created by 63 Stat.