From Andrew Ellicott1
Philadelphia, May 7, 1790. Will depart for Lake Erie at the end of May to complete the survey of the northeastern Pennsylvania lands ceded to the United States by New York.2 Expects to be in New York next week and will furnish Hamilton with an estimate of the expenses involved.
ALS, Andrew Ellicott Papers, Library of Congress.
1. Ellicott was a surveyor and mathematician who had worked for both Virginia and Pennsylvania. In 1789, when he moved from Baltimore to Philadelphia, he was appointed by the Federal Government to fix the southwestern boundary of New York.