Member Biography

Andrew Gregg III


Biographical Directory of the U.S. Congress


Sessions Office Position District Party
1856       14 Republican
1857       14 Republican
1858       14 Republican
1859       12 Republican
1860       12 Republican
1861       12 Republican


11/30/1799 - 05/13/1869

Colonel Andrew Gregg, III (R14) Centre, Lycoming, Sullivan and Clinton Counties 1856-1858 (R12) Clinton, Lycoming, Centre and Union Counties 1859 (R12) Clinton and Lycoming Counties 1860-1861

Early Life:

Colonel Andrew Gregg, III, born  November 30, 1799, Somerset County, Pennsylvania, son of Andrew Gregg, Jr. and Martha Gregg; colonel; iron master, businessman; elected, Republican, Pennsylvania State Senate, 1856-1861; married, Margaret Irvin Gregg, children, Brevet Major General John Irvin Gregg, Lieutenant Andrew Gregg, Lieutenant James Potter Gregg; died, May 13, 1869 (69) Milesburg, Centre County, Pennsylvania; interment, Bellefonte, Centre County, Pennsylvania. 

Early Career: 

Colonel, an Iron Master, co-owner, Hecla Furnace.  

Pennsylvania Politics: 

Elected, Republican, Pennsylvania State Senate 14th district, Centre, Lycoming, Sullivan, Clinton Counties, 1856-1858. 

Elected, Republican, Pennsylvania State Senate 12th district, Centre, Lycoming, Clinton Counties, 1859. 

Elected, Republican, Pennsylvania State Senate 12th district, Clinton and Lycoming Counties, 1860-1861. 


Father, Andrew Gregg, Jr., United States House of Representatives, 1791-1807, United States Senator, President Pro Tempore, Senate, 11th Congress, 1807- 1813; appointed, Pennsylvania Secretary of State, 1816; unsuccessful campaign, Governor of Pennsylvania, 1823. 

Second cousin, Andrew Gregg Curtin, 15th Governor of Pennsylvania. 

Second cousin, James Xavier McLanahan, 14th district, Adams, Cumberland, Franklin Counties, 1842-1843 18th district, Adams and Franklin Counties 1844.

James Xavier McLanahan  - Pennsylvania Senate Library (


Cox, Harold. "Senate Members "G""Wilkes University Election Statistics Project. Wilkes University.

Andrew Gregg III (1799-1869) - Find a Grave Memorial