1To John Adams from John Foncin, 12 October 1800 (Adams Papers)
John Foncin appointed at first Engineer at Baltimore, and newly at Boston, presents to the...
2To Thomas Jefferson from John Foncin, 14 April 1803 (Jefferson Papers)
Le president des etats unis m’ayant honoré du Brevet cy inclus, pour elever les fortifications...
3To Alexander Hamilton from John Foncin, 28 October 1803 (Hamilton Papers)
Having been favored by General Lafayette with a letter for you, I greatly desired to present you...