F. Ryan Duffy
Duffy in 1938
Senior Judge of the United States Court of Appeals for the Seventh Circuit
In office June 30, 1966 – August 16, 1979
Chief Judge of the United States Court of Appeals for the Seventh Circuit
In office September 1, 1954 – August 6, 1959
Preceded by	James Earl Major
Succeeded by	John Simpson Hastings
Judge of the United States Court of Appeals for the Seventh Circuit
In office February 2, 1949 – June 30, 1966
Appointed by	Harry S. Truman
Preceded by	Evan Alfred Evans
Succeeded by	Thomas E. Fairchild
United States District Judge for the Eastern District of Wisconsin
In office June 29, 1939 – February 2, 1949
Appointed by	Franklin D. Roosevelt
Preceded by	Ferdinand August Geiger
Succeeded by	Robert Emmet Tehan
United States Senator from Wisconsin
In office March 4, 1933 – January 3, 1939
Preceded by	John J. Blaine
Succeeded by	Alexander Wiley
Personal details
Born	Francis Ryan Duffy (1888-06-23)June 23, 1888 Fond du Lac, Wisconsin, U.S.
Died	August 16, 1979(1979-08-16) (aged 91) Milwaukee, Wisconsin, U.S.
Resting place	Calvary Cemetery and Mausoleum, Fond du Lac
Political party	Democratic
Education	University of Wisconsin–Madison (BA) University of Wisconsin Law School (LLB)
Profession	Lawyer

Francis Ryan Duffy (June 23, 1888 – August 16, 1979) was an American lawyer, politician, and jurist from Wisconsin. He served 45 years in federal office, as a United States senator, United States district judge, and finally judge of the United States Court of Appeals for the Seventh Circuit. He was also chief judge of the Seventh Circuit from 1954 through 1959.

Born on June 23, 1888, in Fond du Lac, Fond du Lac County, Wisconsin, Duffy attended the public schools. He received a Bachelor of Arts degree in 1910 from the University of Wisconsin–Madison and a Bachelor of Laws in 1912 from the University of Wisconsin Law School and was admitted to the bar in 1912. He was in private practice of law in Fond du Lac from 1912 to 1917, from 1919 to 1933, and in 1939. He served in the United States Army during World War I from 1917 to 1919, attaining the rank of Major. He was United States Senator from Wisconsin from 1933 to 1939.^[1][2][3]

Duffy was elected as a Democrat to the United States Senate and served from March 4, 1933, to January 3, 1939. He served during the 73rd, 74th and 75th United States Congresses. He was an unsuccessful candidate for reelection in 1938. Following his departure from the Senate, he briefly resumed the private practice of law.^[2]

Duffy was nominated by President Franklin D. Roosevelt on June 21, 1939, to a seat on the United States District Court for the Eastern District of Wisconsin vacated by Judge Ferdinand August Geiger. He was confirmed by the United States Senate on June 26, 1939, and received his commission on June 29, 1939. His service terminated on February 2, 1949, due to his elevation to the Seventh Circuit.^[1]

Duffy was nominated by President Harry S. Truman on January 13, 1949, to a seat on the United States Court of Appeals for the Seventh Circuit vacated by Judge Evan Alfred Evans. He was confirmed by the Senate on January 31, 1949, and received his commission on February 2, 1949.^[1] He was sworn in on February 14, 1949.^[4] He served as Chief Judge and as a member of the Judicial Conference of the United States from 1954 to 1959.^[5] He assumed senior status on June 30, 1966. His service terminated upon his death.^[1]

Duffy died on August 16, 1979, in Milwaukee, Wisconsin.^[1] He is interred at Calvary Cemetery in Fond du Lac.^[2]

• United States Congress. "F. Ryan Duffy (id: D000518)". Biographical Directory of the United States Congress.
• Francis Ryan Duffy at the Biographical Directory of Federal Judges, a publication of the Federal Judicial Center.

• Media related to F. Ryan Duffy at Wikimedia Commons