Cockburn Family.

William Cockburn (?-1804) from Berwickshire, Scotland, settled in Kingston, Ulster County, New York in the early 1760s and was employed as a surveyor, land agent, and speculator in Ulster County and throughout the state and Vermont. As a teacher and employer he influenced many of New York States' surveyors. He married Catherine Trumpbour (also spelled Tremper) of Palatine German descent. They had five children including James (ca. 1775-1848) and William Jr. who accompanied their father on surveying expeditions as did his nephew Jacob Trumpbour Jr. John Kiersted Sr. (1786-1862) of Saugerties was a frequent surveyor for the Cockburns and in later years James Cockburn's son Walter A. also participated. William Cockburn is buried in Mount Marion Cemetery, Kingston, New York.

From the description of Land papers, 1732-1864. (Unknown). WorldCat record id: 122578338