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James B. Brennan

1926 – 2021

Wisconsin State Senator

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About James B. Brennan

Lived 1926 – 2021 (aged 95). James B. Brennan was an American politician and lawyer.

James Butler Brennan (February 1, 1926 – June 6, 2021) was an American attorney and Democratic politician from the U.S. state of Wisconsin. He was United States Attorney for the Eastern District of Wisconsin during the presidencies of John F. Kennedy and Lyndon B. Johnson and later served twelve years as Milwaukee's city attorney. Earlier in his career, he served two and a half years in the Wisconsin State Senate.

Life and career Born in Milwaukee, Wisconsin, Brennan graduated from Milwaukee's Marquette University High School and joined the United States Navy at age 18, for service in World War II. He received his bachelor's degree from the University of Notre Dame and his LL.B. from Marquette University Law School. He practiced law in Milwaukee for several years before running for office. He was a delegate to the 1960 Democratic National Convention, supporting the presidential nomination of then-Senator John F. Kennedy.

Brennan was elected to the Wisconsin State Senate in 1958, representing part of the city of Milwaukee. He served two years but resigned in April 1961 in anticipation of his confirmation as United States Attorney.

In March 1961, newly elected president John F. Kennedy nominated Brennan to serve as United States Attorney for the Eastern District of Wisconsin. His nomination was reported favorably out of the Senate Judiciary Committee on May 4, 1961, He was defeated in the 1984 election by his subordinate, Grant Langley, despite strong backing from the then-Mayor Henry Maier. After his defeat, he worked briefly as a staff attorney for the Milwaukee Metropolitan Sewerage District before resigning from that role in 1988.

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Important facts

Birth century
Occupation
Nationality
Education
University of Notre Dame, Marquette University Law School
Positions held
Member of the State Senate of Wisconsin
Also known as
James Butler Brennan

People in James B. Brennan's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped James B. Brennan's

Frequently asked questions

Who was James B. Brennan?

Wisconsin State Senator (1926-2021)

When was James B. Brennan born?

James B. Brennan was born on 1 February 1926 in Milwaukee.

When did James B. Brennan die?

James B. Brennan died on 5 June 2021.

What was James B. Brennan's occupation?

James B. Brennan was a politician and lawyer.

What nationality was James B. Brennan?

James B. Brennan was American.

Sources & further reading

· Wikipedia: James B. Brennan

· Wikidata: Q6129051

· DBpedia: James B. Brennan

Cite this page

APA: Biography.guide. (2026). James B. Brennan. https://biography.guide/james-b-brennan/

MLA: "James B. Brennan." Biography.guide, https://biography.guide/james-b-brennan/.

Chicago: "James B. Brennan." Biography.guide. https://biography.guide/james-b-brennan/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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