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- [S5958] Will of James Campbell, Londonderry Township, Lancaster County, Pennsylvania.
- [S5985] Commemorative Biographical Encyclopedia of Dauphin County, Pennsylvania: Containing Sketches of Prominent and Representative Citizens, and Many of the Early Scotch-Irish and German Settlers, J. M. Runk and Company, (Name: J. M. Runk and Company; Location: Chambersburg, PA; Date: 1896;).
- [S12] The Families of Joshua Williams of Chester County, PA, and John McKeehan of Cumberland County, PA, with Some Allied Families, Bessie P. Douglas, (Minneapolis, MN: Augsburg Press, 1928).
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