
author
1748–1806
A Revolutionary War officer from New York, he is remembered for the journal he kept during the 1779 Sullivan Campaign. That firsthand record has made him valuable to historians as well as to readers interested in the American Revolution.
Born in Rosendale, Ulster County, New York, in 1748, John Leonard Hardenbergh was the son of Leonard and Rachel Hardenbergh and came from an old Dutch New York family. A biographical sketch printed with his journal describes him as the youngest of seven children.
Hardenbergh served in the Continental Army during the American Revolution as an officer in the 2nd New York Regiment. He is best known today for the journal he kept from May to October 1779 during General Sullivan's campaign against Native nations in western New York, a document later published in the nineteenth century and still used as a primary source for the war in that region.
He died in 1806. Although many details of his life are less widely documented than his military journal, that surviving account has preserved his voice and secured his place in Revolutionary War history.