1. Constable, a native of Ireland, was a prominent New York City merchant. In 1784 he became a partner with John Rucker of New York in the firm of Constable, Rucker, and Company. Rucker died in 1788, and Constable continued the firm under the name of William Constable and Company. In 1784 Robert and Gouverneur Morris invested £10,666 in Constable, Rucker, and Company, an association that continued until 1791. Constable was a director of the Bank of New York from 1787 to 1792.

2. At the bottom of this document Benjamin Walker wrote: “Colo. Walker promises to pay the Amt in May next. January 12th. 1789.”

The endorsement in H’s handwriting reads: “oct 6 89 paid by A Hamilton & charged.” See H’s “Cash Book,” March 1, 1782–1791 (PAH description begins Harold C. Syrett, ed., The Papers of Alexander Hamilton (New York and London, 1961– ). description ends , III, 51, 52); “Receipt from Benjamin Walker,” April 5, 1790 (PAH description begins Harold C. Syrett, ed., The Papers of Alexander Hamilton (New York and London, 1961– ). description ends , VI, 353).

A native of London, Benjamin Walker had emigrated to America before the American Revolution and settled in New York City. During the war he was aide-de-camp to Baron von Steuben. In 1786 he was appointed commissioner to settle the accounts of the hospital, marine, and clothing departments.