A narrative of the mission of the United Brethren among the Delaware and Mohegan Indians, from its commencement, in the year 1740, to the close of the year 1808

“This work, which covers a space of sixty-eight years, from the first commencement of the Moravian labors among the red men to the death of the venerable Zeisberger, must still be considered in a historical point of view, as one of the standard records of the times. Mr. Heckewelder was an eye-witness of a great proportion of what he relates, and had the best opportunities of acquiring information. Of his honesty, too, those who have read his unassuming work, can entertain no doubt; he represents things as they were without any attempt at coloring or ornament.”
- Peter G. Thomson, ***A Bibliography of the State of Ohio*** (1880)