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geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:1168189
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www.findagrave.com/cgi-bin/fg.cgi?page=cr&CRid=44307
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pennsylvaniagravestones.org/cemetery.php?cemID=341 (13 Apr 2011)
Research your Pennsylvania ancestors and family history by searching our online database of Pennsylvania gravestone photos. Locate Pennsylvania gravestone images of your descendants and discover your Pennsylvania roots.
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www.findagrave.com/cgi-bin/fg.cgi?page=cr&CRid=197943
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www.interment.net/data/us/pa/northampton/allenunion/allenunion.htm (9 Jan 2007)
Cemetery records of Allen Union Cemetery in Northampton, Northampton County, Pennsylvania
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www.pagenealogy.org/DIR.HTM (25 Oct 2009)