Mappa, Adam Gérard, 1754-1828
The Mappa Papers include 47 letters, 1778-1833 and undated, the majority being for the period 1789-1795. Almost all are in Dutch, with the rest in French. The correspondence is both personal, and pertaining to the business of the Holland Land Co., particularly in the Boonville and Oldenbarneveldt (Trenton) areas of Oneida County, N. Y.