- A History of the Goshenhoppen Reformed Charge, Montgomery County, Pennsylvania
- Pennsylvania German Pioneers. a Publication of the Original Lists of Arrivals in the Port of Philadelphia from 1727 to 1808. in Two Volumes. Volume I: 1727-1775
- A History Of The Goshenhoppen Reformed Charge: Montgomery County, Pennsylvania, 1727-1819
- Life and Letters of the Rev. John Philip Boehm, Founder of the Reformed Church in Pennsylvania, 1683-1749
- Minutes and Letters of the Coetus of the German Reformed Congregations in Pennsylvania, 1747-1792. Together with Three Preliminary Reports of REV. John Philip Boehm, 1734-1744