A small collection of correspondence (seven letters) written by Heckewelder from his home in Bethlehem, Pa. to three individuals between the years 1790 and 1822.,The largest group of letters were written to William Alexander, a surveyor residing in Carlisle, Pa., dated 23 March 1790 to 8 Feb. 1791. In these letters Heckewelder engages the services of Alexander to survey five warrents of land (650 acres) in eastern Ohio purchased by Heckewelder and others. He also instructs Alexander to layout these warrents "on a good rich spot, and as near the Christian Indians Tract as possible." Also included in this collection are two other letters - one to Noah Worcester (Corresponding Secretary of the Massachusetts Peace Society) in 1818 and the other to John Huffnagle (Philadelphia merchant) in 1822. In the letter to Worcester, Heckewelder describes the peace efforts and mission of the Moravian Church. And in a short letter to Huffnagle, he mentions his grafting attempts of fruit trees and his failing health.