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Alexander Thomson

1788 – 1848

American politician from Pennsylvania

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About Alexander Thomson

Lived 1788 – 1848 (aged 60). Alexander Thomson was an American politician, lawyer and judge.

Alexander Thomson (January 12, 1788 – August 2, 1848) was a member of the U.S. House of Representatives from Pennsylvania in the mid-1820s, judge, and law professor. He opened a law school in Chambersburg, that became the law department of Marshall College.

Early life and education Alexander Thomson was born at Scotland, Franklin County, Pennsylvania, both of his parents died young. and died December 1801. His mother was Ann Thomson, who died after 1801. Alexander was the grandson of immigrant Alexander Thomson who arrived from Scotland in 1771 and settled with his wife and 12 children near Chambersburg, Pennsylvania.

Thomson was the eldest of six children. His siblings were James, Elizabeth, Jane, Agnes, and Hannah.

In 1824, Thomson was elected to the Eighteenth Congress to fill the vacancy caused by the resignation of John Tod. He was reelected to the Nineteenth Congress and served until May 1, 1826, when he resigned. He was immediately commissioned assistant judge of the District Court of the City and County of Lancaster, and the Counties of York and Dauphin. He was commissioned president judge of the Sixteenth Judicial District, composed of Franklin, Bedford and Somerset Counties, on June 25, 1827 and served until 1841.

Thomson moved to Chambersberg where he purchased a mansion that was used as his residence, offices for his private practices, and a law school. His instruction consisted of oral instructions and examinations. His school became the law department of Marshall College.

Personal life Thomson was married on October 21, 1817 to Abigail Blythe of Bedford. After Abigal's death, he married Jane Graham, a daughter of General Graham of Stoystown. He had two daughters and five sons, one of whom was the railroad executive Frank Thomson.

He died in Chambersburg in 1848. Interment in Falling Spring Presbyterian Cemetery.

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Important facts

Birth century
Nationality
Positions held
United States representative, Member of the Pennsylvania House of Representatives

People in Alexander Thomson's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Alexander Thomson's

Frequently asked questions

Who was Alexander Thomson?

American politician from Pennsylvania (1788-1848)

When was Alexander Thomson born?

Alexander Thomson was born on 12 January 1788 in Franklin County.

When did Alexander Thomson die?

Alexander Thomson died on 2 August 1848.

What was Alexander Thomson's occupation?

Alexander Thomson was a politician, lawyer and judge.

What nationality was Alexander Thomson?

Alexander Thomson was American.

Sources & further reading

· Wikipedia: Alexander Thomson

· Wikidata: Q4720222

· DBpedia: Alexander Thomson (Pennsylvania politician)

Cite this page

APA: Biography.guide. (2026). Alexander Thomson. https://biography.guide/alexander-thomson-politician/

MLA: "Alexander Thomson." Biography.guide, https://biography.guide/alexander-thomson-politician/.

Chicago: "Alexander Thomson." Biography.guide. https://biography.guide/alexander-thomson-politician/.

Data last updated: 2026-09-23 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

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