Brecht, Samuel Kriebel. The Genealogical Record of the Schwenkfelder Families; Seekers of Religious Liberty who Fled from Silesia to Saxony and thence to Pennsylvania in the years 1731 to 1737. New York: Printed for The Board of Publication of the Schwenkfelder Church, Pannsburg, Pennsylvania, by Rand McNally & Company, 1923. First Edition. 
Brown cloth with dark red titles, 8 x 11 inches,xx., 1752 clean pp., 142 b/w plates, tight. Binding with some light soil & stains, ffep with edge creases. Extensive index. Ex historical society library with white ink call numbers base of spine, ink name stamp on tp, pencil call numbers. Never had a card pocket or modern library matter. Very good. Hardcover.
An enormous reference on the history of the Schwenkfelder church and the genealogies of the families that emigrated to America in the 1730's. Early settlers kept diaries and record books, and in the late 19th century there was a revival of interest amongst the church that resulted in many ancient records being found and secured. Their study enabled the production of this work.