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geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:457136
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www.findagrave.com/cgi-bin/fg.cgi?page=cr&CRid=94953
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iagenweb.org/blackhawk/greenwood.html (23 Apr 2011)
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iagenweb.org/blackhawk/cemetery1r.htm (30 Oct 2012)
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iagenweb.org/blackhawk/greenwoodcemstones1a.htm (25 Jun 2008)
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iagenweb.org/blackhawk/greenwoodcemstones2.htm (25 Jun 2008)
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iagenweb.org/blackhawk/greenwoodcemstones1.htm (25 Jun 2008)