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Portrait of Calvert Magruder, circuit judge of the U.S. Court of Appeals for the First Circuit
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Historical · U.S. Court of Appeals for the First Circuit

Calvert Magruder

Former Circuit Judge · U.S. Court of Appeals for the First Circuit · 1939–1968 · Appointed by Franklin D Roosevelt

Calvert Magruder served as a circuit judge of the U.S. Court of Appeals for the First Circuit (1939–1968). Magruder was appointed by Franklin D Roosevelt.

Key facts

Full name
Calvert Magruder
Court
U.S. Court of Appeals for the First Circuit
Office
Circuit Judge (U.S. Court of Appeals)
Status
Former circuit judge
Duty status
Not serving
Appointment
Senate-confirmed
FJC seat
CA10103
Tenure
1939–1968
Confirmed
1939-06-01
Born
1893-12-26
Died
1968-05-22
First year on the bench
1939
Dataset version
1.20260711

Appointment & service record

  • U.S. Court of Appeals for the First Circuit · 1939–1959

    Seat
    CA10103
    Appointment
    Senate-confirmed
    Appointing president
    Franklin D Roosevelt
    Confirmed
    1939-06-01
    Commissioned
    1939-06-03
    Senior status
    1959-06-12
    Chief Judge
    19481959

Court, FJC seat, appointment type (Senate-confirmed or recess), appointing president, confirmation and commission dates, and senior-status date are drawn from the Federal Judicial Center Biographical Directory and Wikidata.[1][2][3]

Sources

  1. [1]https://www.fjc.gov/node/1384236fjc · retrieved 2026-07-11
  2. [2]https://www.fjc.gov/history/judges/biographical-directory-article-iii-federal-judges-exportfjc-directory · retrieved 2026-07-11
  3. [3]https://www.wikidata.org/wiki/Q5024266Wikidata · retrieved 2026-07-11

Biographical narrative

1,283 words · sourced from the Wikipedia REST extract

Cecilius Calvert Magruder was a United States circuit judge who served on the United States Court of Appeals for the First Circuit from 1939 to 1968, including eleven years as Chief Judge. Born in Maryland in 1893, he had a distinguished career in legal education and government service before his appointment to the federal bench. His professional life encompassed teaching at Harvard Law School for nearly four decades, service as a law clerk to a Supreme Court Justice, leadership roles in New Deal labor agencies, and extensive contributions to the federal judiciary during a transformative period in American law.

Magruder was born on December 26, 1893, in Annapolis, Maryland, into a family with deep roots in Maryland's legal and political establishment. His father, Daniel Randall Magruder, served both as a member of the Maryland House of Delegates and as a judge on the Maryland Court of Appeals, providing the younger Magruder with early exposure to law and public service. His mother was Rosalie Eugenia Stuart Webster. He pursued his undergraduate education at St. John's College in Annapolis, earning an Artium Baccalaureus degree in 1913 and later an Artium Magister degree in 1917 from the same institution.

Magruder attended Harvard Law School, where he completed his Bachelor of Laws degree in 1916. Immediately following his graduation from law school, he secured a prestigious clerkship with Associate Justice Louis Brandeis of the Supreme Court of the United States, serving from 1916 to 1917. This clerkship placed him at the center of the nation's highest court during a significant period in constitutional development and provided him with invaluable experience in judicial reasoning and legal analysis.

His early career was interrupted by World War I, during which he served as an infantry lieutenant in the United States Army from 1917 to 1919. Following his military service, Magruder worked briefly as an attorney for the United States Shipping Board from 1919 to 1920, gaining experience in administrative law and federal regulation.

In 1920, Magruder began what would become a lengthy association with Harvard Law School, joining the faculty as an assistant professor of law. He advanced to the rank of professor of law in 1925, a position he held until 1932. His academic career expanded beyond teaching when he was appointed vice dean of the law school in 1930, serving in that administrative capacity until 1939. This role gave him significant influence over the direction of legal education at one of the nation's premier law schools during a period of considerable evolution in legal pedagogy and scholarship.

Magruder's expertise in labor law led to important government appointments during the New Deal era. He served as general counsel for the National Labor Relations Board from 1934 to 1935, during the early implementation of federal labor protections. Later, from 1938 to 1939, he held the position of general counsel for the Wage and Hour Division of the United States Department of Labor, working on the enforcement of newly established federal wage and hour standards. These positions placed him at the forefront of developing and implementing major New Deal labor legislation.

Federal appellate service

President Franklin D. Roosevelt, a Democrat, nominated Magruder to the United States Court of Appeals for the First Circuit on April 24, 1939. The nomination was to fill a seat that had been vacated by Judge George Hutchins Bingham. The United States Senate confirmed the nomination on June 1, 1939, and Magruder received his commission two days later, on June 3, 1939. His appointment brought to the federal bench a jurist with extensive academic credentials, practical government experience, and expertise in labor and administrative law.

Magruder's judicial service extended beyond his primary role on the First Circuit. From 1942 to 1962, he served as a judge on the Emergency Court of Appeals, a specialized tribunal created during World War II to handle appeals related to wartime economic regulations. This additional assignment reflected the demands placed on the federal judiciary during and after the war years and demonstrated the breadth of his judicial responsibilities.

In 1948, Magruder was elevated to the position of Chief Judge of the First Circuit, a role he held for eleven years until 1959. As Chief Judge, he bore administrative responsibilities for the circuit in addition to his judicial duties, overseeing the court during the post-war period and the beginning of the civil rights era. His leadership coincided with significant growth in the federal docket and important developments in federal jurisprudence.

Magruder's prominence in the federal judiciary was further evidenced by his service on national judicial bodies. He was a member of the Conference of Senior Circuit Judges, which later became the Judicial Conference of the United States, from 1940 to 1948. Following his elevation to Chief Judge, he continued this service as a member of the Judicial Conference of the United States from 1948 to 1959, participating in the governance and policy-making processes of the federal court system at the national level.

On June 12, 1959, Magruder assumed senior status, a form of semi-retirement that allowed him to continue hearing cases while reducing his caseload. Even while in senior status, he maintained his connection to legal education, returning to Harvard Law School as a lecturer from 1947 to 1959, a period that overlapped with his active judicial service and continued after he took senior status. He also served as a visiting lecturer at several other institutions, including the University of California, Hastings College of the Law from 1959 to 1960, Columbia University from 1960 to 1961, Ohio State University in 1961, and the University of Puerto Rico in 1962.

Magruder's service on the First Circuit terminated on May 22, 1968, when he died at the age of 74. At the time of his death, he was living in Newton, Massachusetts. His nearly three decades on the federal bench represented a substantial contribution to the development of federal law in the First Circuit.

Jurisprudence and legacy

Magruder's judicial career spanned a critical period in American legal history, from the late New Deal era through the 1960s. His background in labor law and administrative regulation, developed through his academic work and government service, informed his approach to the many cases involving federal regulatory schemes that came before the First Circuit during his tenure. The combination of his scholarly training, practical government experience, and service as a Supreme Court law clerk provided him with a multifaceted perspective on federal law.

His long service as Chief Judge, spanning more than a decade, gave him significant influence over the administration and direction of the First Circuit during the post-war expansion of federal jurisdiction. The period of his chief judgeship saw the federal courts grappling with new questions of administrative law, labor relations, and the early stages of civil rights litigation, all areas in which the First Circuit played an important role.

Magruder's simultaneous commitment to judicial service and legal education was relatively unusual and demonstrated his dedication to both the practical application and theoretical development of law. His return to teaching at Harvard while serving on the bench, and his subsequent visiting appointments at multiple law schools after assuming senior status, allowed him to bridge the worlds of legal academia and the federal judiciary, bringing practical judicial experience to the classroom and scholarly rigor to the bench.

The papers from his career, spanning from 1920 to 1965, are preserved at Harvard Law School Library, providing a resource for scholars studying the development of federal law, legal education, and the federal judiciary during the mid-twentieth century. His service represents an era when the federal courts were establishing many of the doctrines and approaches that would shape modern administrative and labor law.

Sources & provenance

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Explore the federal judiciary

The U.S. Courts of Appeals are the intermediate appellate courts of the federal judiciary — thirteen circuits sitting between the district courts and the Supreme Court. Browse the full roster of judges on the U.S. Court of Appeals for the First Circuit, or explore how the appointed federal judiciary fits into the federal government.