1To John Adams from R. Riker, 28 April 1826 (Adams Papers)
..., to commemorate the completion of the Erie Canal which unites the great Western Lakes...
2To John Adams from Elkanah Watson, 17 December 1822 (Adams Papers)
correct Map of the rout of the Erie Canal extant—On that account it is valuable—It contains also...
3To John Adams from LeRay de Chaumont, 14 February 1825 (Adams Papers)
...& even the making of the great Erie Canal which opened to the Settlers new Countries beyond...