1To Alexander Hamilton from Susanna, Ruth, Joseph, Nelly, and John Cockle, 12 June 1789 (Hamilton Papers)
New York, June 12, 1789. Authorize Hamilton to “become security to Mr Robert Boyd for a Certain Sum of money left us as a Legacy by our late Grand Father John Cockle of Jamaica on Long Island.” ALS , Hamilton Papers, Library of Congress. At the bottom of the letter is a bond in the writing of H and signed by John Cockle.