George Sanderson was born circa 1712 in Scotland to Alexander Sanderson (-c1760) and Jean Watson and died before 22 May 1797 Carlisle, Cumberland County, Pennsylvania, United States of America of unspecified causes. He married Jane Ross (1716-1750) 1737 in Pennsylvania, United States.
"George Sanderson was the eldest son of Alexander and Jean Sanderson, who emigrated from Scotland prior to 1750, and settled in Middleton township, Cumberland county, Penn'a. His father was one of the first elders in Monaghan Presbyterian church. He died about the first of February, 1760, and had issue (surname Sanderson), George, Alexander, Barbara, Martha, William, John, James and Margaret. The son, George Sanderson, b. about the year 1712; d. about 1787. He was twice married, his first wife a Ross, the second, Jean Aitken. There was issue only by the first wife (surname Sanderson)"
- i. Robert, b1738; m Mary -----, and had George and Robert.
- ii. John, b. 1740; d. 1799; m. Sarah McMichael; no issue.
- iii. Catharine, b. 1742; d.1810: m. Hugh McCormick.
- iv. Margaret, b. 1743: m. James Elliott, and has a son George.
- v. Mary, b. 1745: m. David Elliott, and had sons, George and Robert.
- vi. Martha, b. 1747: d. prior 1808: m. Robert McCormick."
" - Pennsylvania Genealogies: Scotch-Irish and German By William Henry Egle
"George Sanderson was the eldest son of Alexander, and his wife was Jane. They had two sons and four daughters. George died in 1797, his will signed Nov. 11, 1795, proved May 22, 1797. Robert, the eldest son, was born in England in 1736, died 1803, will signed Oct. 16, 1802, proved March 10, 1803. His wife was Mary. They had three sons, George, Alexander and William, who was married and had children, and two daughters. Martha McClain, with three children, and Jane Hawling. The Sanderson family must have held considerable property, as nineteen of them are on the list as warrantees of land taken up from 1745-1797."
- Samuel Carpenter and his descendants By Louis Henry Carpenter
1762 Taxables in Middleton Township, Cumberland County, Pennsylvania - George Sanderson Sr., Robert Sanderson, Jean Sanderson, George Sanderson Jr.