An Act for encouraging the People known by the Name of Unitas Fratrum or United Brethren, to settle in His Majesty's Colonies in America (1749)

Spangenberg: Candid Declaration (1768)

Spangenberg: An Account of the manner in which the Protestant Church of the Unitas Fratrum, or United Brethren, preach the Gospel, and carry on their missions among the heathen (1780/1788)

A more contemporary view of mission: the training of local ministers and chapel servants through Rev. Samuel Propsom and Debra Propsom.