Andrew Gregg (June 10, 1755 – May 20, 1835) was an American politician. A Democratic-Republican, he served as a United States Senator for Pennsylvania from 1807 until 1813. Prior to that, he served as a U.S. Representative from 1791 until 1807. From June to December 1809, he served briefly as President pro tempore of the United States Senate.
|President pro tempore of the United States Senate|
June 26, 1809 – December 18, 1809
|Preceded by||John Milledge|
|Succeeded by||John Gaillard|
|United States Senator|
March 4, 1807 – March 4, 1813
|Preceded by||George Logan|
|Succeeded by||Abner Lacock|
|Member of the U.S. House of Representatives|
March 4, 1791 – March 3, 1807
|Preceded by||Joseph Hiester|
|Succeeded by||Daniel Montgomery Jr.|
|Constituency||6th district (1791–1793)|
at-large district (Seat F) (1793–1795)
9th district (1795–1803)
5th district (1803–1807)
|Born||June 10, 1755|
Carlisle, Province of Pennsylvania, British America
|Died||May 20, 1835 (aged 79)|
Bellefonte, Pennsylvania, U.S.
Gregg was born on June 10, 1755, in Carlisle in the Province of Pennsylvania. His father was Andrew Gregg (1710–1789), and his mother was Jane Scott (1725–1783). He married Martha Potter, the daughter of Major General James Potter. The couple had 11 children. His son, Andrew Gregg, Jr., built the Andrew Gregg Homestead about 1825.
He served as a United States Congressman from Pennsylvania from 1791 until 1813: first, in the United States House of Representatives from October 24, 1791, until March 4, 1807, and then in the United States Senate from October 26, 1807, until March 4, 1813. During part of his service in the Senate, he served as President pro tempore.
He was appointed secretary of state for Pennsylvania, in 1816, and ran unsuccessfully for Governor of Pennsylvania in 1823. Prior to his election to the United States Congress, he had served in the militia during the American Revolution, and had been a tutor at the College of Philadelphia, from 1779 to 1783. His grandsons Andrew Gregg Curtin and James Xavier McLanahan were also prominent Pennsylvania politicians.
- Jordan, John Wolfe, ed. (1911). Colonial and Revolutionary Families of Pennsylvania; Genealogical and Personal Memoirs. Vol. 2. New York: Lewis Publishing. p. 856.
- Egle, William Henry (1896). Pennsylvania genealogies; chiefly Scotch-Irish and German. Harrisburg, Pennsylvania: Harrisburg Publishing. p. 294.
- "Gregg, Andrew, 1755-1835". Biographical Dictionary of the United States Congress. Retrieved July 1, 2023.