Duncan Lawrence Groner (September 6, 1873 – July 17, 1957) was an Associate Justice and later Chief Justice of the United States Court of Appeals for the District of Columbia.

Duncan Lawrence Groner
District of Columbia Circuit Court of Appeals
Chief Judge — U.S. Court of Appeals for the District of Columbia Circuit
Born 1873 in Norfolk, VA
Died 1957
FJC ID: 921
Career output and lasting influence
Opinions attributed per year · peak 9/year
Later decisions citing those opinions, per year · peak 11/year
Virginia Eastern District Court · 1921–1931District of Columbia District Court · 1931–1937District of Columbia Circuit Court of Appeals · 1931–1938District of Columbia District Court · 1937–1957District of Columbia Circuit Court of Appeals · 1937–1957
Both charts share the same year axis. Opinion counts include only opinions in our corpus attributed to this judge so far — a year at zero can mean an attribution gap, not judicial silence. Influence typically outlasts the career: citations keep climbing after the last opinion.
- Gender
- Male
- Race
- White
Prior employment
- Conference of Senior Circuit Judges (now Judicial Conference of the United States)Member · 1938–1947
- Private practice, Norfolk, Virginia1894–1921
- Republican National ConventionDelegate · 1904, 1908, 1912, 1916, 1920
U.S. attorney for the Eastern District of Virginia1910–1913
Appointments

1937–1957 · Appointed by Franklin D. Roosevelt (Democratic)Term ended: Death
1931–1938 · Appointed by Herbert Hoover (Republican)Term ended: Appointment to Another Judicial Position
1921–1931 · Appointed by Warren G. Harding (Republican)Term ended: Appointment to Another Judicial Position
Education
- University of Virginia
- Washington and Lee University
- University of Virginia-Main Campus