Who appointed James Francis Thaddeus O'Connor?

President Franklin D. Roosevelt appointed James Francis Thaddeus O'Connor to the U.S. District Court for the Southern District of California in 1940.

Was James Francis Thaddeus O'Connor appointed by a Democrat or a Republican?

James Francis Thaddeus O'Connor was appointed by President Franklin D. Roosevelt, a Democrat. JudicialFinder records the appointing president's party, not a judge's own politics.

What was James Francis Thaddeus O'Connor's confirmation vote?

James Francis Thaddeus O'Connor was confirmed by voice vote on September 19, 1940. No senator-by-senator tally was recorded.

Southern District of California / Appointed 1940 / Served to 1949

James Francis Thaddeus O'Connor

Judge, U.S. District Court for the Southern District of California

Appointed by President Franklin D. Roosevelt in 1940 and confirmed by voice vote, James Francis Thaddeus O'Connor was a Judge on the U.S. District Court for the Southern District of California. He earned a law degree from University of North Dakota School of Law in 1908. Sources ↓

Lived: 1886–1949
Appointed by: Franklin D. Roosevelt, 1940
Confirmed: by voice vote
Education: University of North Dakota 1907 · University of North Dakota Law 1908
Succeeded: William P. James
Succeeded by: William Matthew Byrne Sr.

Federal judicial service

Year	Court	Appointed by	Vote
1940	Southern District of California succeeded William P. James	F.D. Roosevelt (D)	Voice vote

Party letters show the appointing president’s party, not the judge’s own. A voice vote means the chamber approved aloud. No senator-by-senator tally is recorded.

Confirmation vote

Voice vote

The Senate approved this confirmation aloud, with no senator-by-senator tally recorded. Recorded roll-call votes begin in 1989.

Education

University of North Dakota	A.B.	1907
University of North Dakota School of Law	LL.B.	1908
Yale Law School	LL.B.	1909
Yale University	M.A.	1910

Questions & answers

Who appointed James Francis Thaddeus O'Connor?: President Franklin D. Roosevelt appointed James Francis Thaddeus O'Connor to the U.S. District Court for the Southern District of California in 1940.
Was James Francis Thaddeus O'Connor appointed by a Democrat or a Republican?: James Francis Thaddeus O'Connor was appointed by President Franklin D. Roosevelt, a Democrat. JudicialFinder records the appointing president's party, not a judge's own politics.
What was James Francis Thaddeus O'Connor's confirmation vote?: James Francis Thaddeus O'Connor was confirmed by voice vote on September 19, 1940. No senator-by-senator tally was recorded.
Which court was James Francis Thaddeus O'Connor on?: James Francis Thaddeus O'Connor was a Judge on the U.S. District Court for the Southern District of California.

Sources

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9 years on the U.S. District Court for the Southern District of California. Data as of 2026-08-10. Informational only; verify against the primary source before relying. Not a consumer report (FCRA).