This collection consists of a letter by Isaac Backus and its transcription, as well as a description of the letter and books from Kenneth Nebenzahl, a book vendor. The letter discusses Samuel Alden and Robert Washburn in their dealings with the Church of Christ in Bridgewater and Middleborough. On November 8, 1751, the two men refused to receive and restore a pastor of the church because he could not practice infant Baptism, and they had a difference in judgement about the Bar of Communion. For this, the two men were punished and separated from the church. The letter is enclosed in Isaac Backus's A History of New England, purchased from Kenneth Nebenzahl Inc. These items are undated, but refer to events in 1751-1752.