In 1840, Gerrit Smith, sold and gave away much of the land. Among the land he gave away was the property of "Timbuctoo", a settlement of free blacks who came to the area to farm and gain voting rights. In 1849, John Brown, the abolitionist, moved to the area to assist them in their farming, and though Watson Smith describes the soil as fertile, the farming community founded by Gerrit Smith on the "Plains of Abraham" floundered. The first supervisor of North Elba was John Thompson. His family was intimately connected to John Brown as two of Thompson's brothers were killed at Harper's Ferry.
For more info http://www.albany.edu/history/digital/KrakatJohnBrown/