Amos Madden Thayer (October 10, 1841 – April 24, 1905) was a United States circuit judge of the United States Court of Appeals for the Eighth Circuit and of the United States Circuit Courts for the Eighth Circuit and previously was a United States district judge of the United States District Court for the Eastern District of Missouri.

Amos Madden Thayer
Born 1841 in Mina, NY
Died 1905 in St. Louis, MO
FJC ID: 2359
Career output and lasting influence
Opinions attributed per year · peak 14/year
Later decisions citing those opinions, per year · peak 20/year
Missouri Eastern District Court · 1887–1894U.S. Circuit Courts for the Eighth Circuit · 1894–1905Eighth Circuit Court of Appeals · 1894–1905
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
- Washington University, St. Louis, MissouriProfessor · 1890–present
- Private practice, St. Louis, Missouri1868–1887
- Circuit Court of Missouri, St. Louis CircuitJudge · 1876–1887
U.S. Army major1862–1865- Private practice, Montana Territory
Appointments
1894–1905 · Appointed by Grover Cleveland (Democratic)Term ended: Death
1894–1905 · Appointed by Grover Cleveland (Democratic)Term ended: Death
1887–1894 · Appointed by Grover Cleveland (Democratic)Term ended: Appointment to Another Judicial Position
Education
- Read law1868
- Hamilton College1862