John Gottlieb Ernestus Heckewelder

Thirty thousand miles with John Heckewelder

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

Heckewelder's Vocabulary of Nanticoke (American Language Reprints, 31)

An account of the history, manners, and customs of the Indian nations

Names given by the Lenni Lenape or Delaware Indians to rivers, streams, places, &c., in the now states of Pennsylvania, New Jersey, Maryland and Virginia

Words, phrases, and short dialogues, in the language of the Lenni Lenape, or Delaware Indians