Cecilius Calvert Magruder (December 26, 1893 – May 22, 1968) was a United States circuit judge of the United States Court of Appeals for the First Circuit.

Calvert Magruder
First Circuit Court of Appeals
Chief Judge — U.S. Court of Appeals for the First Circuit
Born 1893 in Annapolis, MD
Died 1968
FJC ID: 1463
Career output and lasting influence
Opinions attributed per year · peak 29/year
Later decisions citing those opinions, per year · peak 105/year
First Circuit Court of Appeals · 1939–1968
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
- University of Puerto RicoLecturer · 1962
- Columbia UniversityLecturer · 1960–1961
- Ohio State UniversityLecturer · 1961
Lecturer · 1959–1960
Faculty · 1920–1939, 1947–1959- ↳assistant professor of law · 1920–1925
- ↳professor of law · 1925–1939
- ↳vice dean · 1930–1939
- ↳lecturer · 1947–1959
- Conference of Senior Circuit Judges, 1940-1948, and Judicial Conference of the United StatesMember · 1948–1959
Wage and Hour Division, U.S. Department of LaborGeneral counsel · 1938–1939
National Labor Relations BoardGeneral counsel · 1934–1935- U.S. Shipping BoardAttorney · 1919–1920
InfantryU.S. Army lieutenant · 1917–1919
Law clerk , Hon. Louis Brandeis · 1916–1917
Appointments
U.S. Court of Appeals for the First CircuitChief Judge1939–1968 · Appointed by Franklin D. Roosevelt (Democratic)Term ended: Death
Education
- St. John's College, Annapolis, MarylandA.M. · 1917
LL.B. · 1916- St. John's College, Annapolis, MarylandA.B. · 1913