JOHN THOMPSON, farmer, postoffice Monroeville, was born in County Armagh, Ireland, in 1811. His parents, John and Elizabeth (McMullen) Thompson, came to Pennsylvania in 1812, and settled soon after on the farm where our subject now resides. The father died at the age of one hundred and two, and the mother at the age of forty-five. They reared four sons, of whom the eldest and youngest are now deceased: James, John, William and Alexander. John has passed his life in the township, always residing on the home farm. He has been a lifelong republican, and bears the soubriquet of "Honest John." In 1843 he married Mary McKnight, a native of Washington county, daughter of Joseph and Elizabeth (Connor) McKnight. Of thirteen children born to Mr. and Mrs. Thompson, six died in infancy. The following are the names and residences of the others: William and John, in Cannonsburg, Ohio; Anna Mary, wife of Frank McClure, in Patton township; Nancy Jane, wife of David Clements, in Plum; James, in Patton; Elmer, with his parents, and Rebecca, wife of George Anderson, in Murrysville. Mr. Thompson is a member of the U. P. Church.

-- Warner's History of Allegheny County, Pennsylvania (1889)