William H. Cabell was the son of Colonel Nicholas Cabell and Hannah Carrington Cabell. He attended Hampden-Sydney College and graduated from the College of Willilam and Mary in 1793. He started his career as a lawyer and later entered politics. He was the 14th Governor of Virginia.
There were three generations of William Cabells who were surveyors. Dr. William Cabell (1700-1774) was a physician and assistant surveyor of Goochland and Albemarle Counties, Virginia under Joshua Fry and William Mayo. His son William Cabell (1729/30-1798) was also assistant surveyor of Albemarle County and surveyor of Amherst County, Virginia. His son and the third William Cabell (b. 1759) was surveyor of Amherst County, Virginia. Further information about this individual or organization may be available in the Special Collections Research Center Wiki: http://scrc.swem.wm.edu/wiki/index.php/William H. Cabell.
Hughes, Sarah S.Surveyors and Statesmen: Land Measuring in Colonial Virginia.Richmond, Va.:Virginia