Consists of printed indexes to B. H. Unruh's Die niederländisch-niederdeutschen Hintergründe der mennonitischen Ostwanderungen im 16., 18. und 19. Jahrhundert (1959), derived from a database compiled by Peters.
Peters, Alan F., 1939-
Box 1: photocopies of the Unruh material at the Hoover Institution, much of it notes for what became his Fügung und Führung book
Box 2: more Hoover photocopies; folder of typed obituaries and tributes, probably collected by Cornelius Krahn; other miscellaneous photocopies
Unruh, Benjamin Heinrich, 1881-1959