Few Founding Fathers Toiled Harder Against Slavery than Hamilton
(p. 211) The magnitude of southern slavery was to have far-reaching repercussions in Hamilton's career. The most damning and hypocritical critiques of his allegedly aristocratic economic system emanated from the most aristocratic southern slaveholders, who deflected attention from their own nefarious deeds by posing as populist champions and assailing the northern financial and mercantile interests aligned with Hamilton. As will be seen, the national consensus that the slavery issue should be tabled to preserve the union meant that the southern plantation economy was effectively ruled off-limits to political discussion, while Hamilton's system, by default, underwent the most searching scrutiny.
Few, if any, other founding fathers opposed slavery more consistently or toiled (p. 212) harder to eradicate it than Hamilton--a fact that belies the historical stereotype that he cared only for the rich and privileged.
. . .
(p. 213) The issue surged to the fore with the peace treaty that ended the Revolution. At the prompting of Henry Laurens, article 7 placed a ban on the British "carrying away any Negroes or other property" after the war. This nebulous phrase was construed by slaveholders to mean that the British should return runaway slaves who had defected to the British lines or else pay compensation. The British, in turn, claimed that the former slaves had been freed when they crossed behind British lines. Conceding that Britain may have violated article 7 on technical grounds, Hamilton nevertheless refused to stand up for the slaveholders and invoked a higher moral authority:In the interpretation of treaties, things odious or immoral are not to be presumed. The abandonment of negroes, who had been induced to quit their masters on the faith of official proclamations, promising them liberty, to fall again under the yoke of their masters and into slavery is as odious and immoral a thing as can be conceived. It is odious not only as it imposes an act of perfidy on one of the contracting parties, but as it tends to bring back to servitude men once made free.
This fierce defender of private property--this man for whom contracts were to be sacred covenants--expressly denied the sanctity of any agreement that stripped people of their freedom.
Chernow, Ron. Alexander Hamilton. New York: The Penguin Press, 2004.
(Note: italics in original.)