Patrick Calhoun
Patrick Calhoun was the grandson of John C. Calhoun and Floride Calhoun, and the greatgrandson of his namesake Patrick Calhoun. He is best known as a railroad baron of the late 1800s, and as the founder of Euclid Heights, Ohio.
Patrick Calhoun was born at Fort Hill, the estate of his grandfather, John C. Calhoun, located near Clemson, South Carolina. He was born to Andrew Pickens and Margaret Maria Calhoun, and was the youngest of six children. His maternal grandfather, Duff Green, was an important South Carolina businessman who had been a financial backer of John C. Calhoun early in Calhouns political career.
Source: Wikipedia