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geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:830538
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www.interment.net/data/us/ne/boyd/knollcrest/knoll.htm (22 Oct 2009)
Cemetery records of Knollcrest Cemetery in Boyd County, Nebraska
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nebraskagravestones.org/cemetery.php?cemID=449 (17 Dec 2011)
Research your Nebraska ancestors and family history by searching our online database of Nebraska gravestone photos. Locate Nebraska gravestone images of your descendants and discover your Nebraska roots.
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www.usgennet.org/usa/ne/county/boyd1/cemetery/knoll07.html (13 Sep 2009)
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www.usgennet.org/usa/ne/county/boyd1/cemetery/knollcrest.html (13 Sep 2009)
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www.findagrave.com/cgi-bin/fg.cgi?page=cr&CRid=100869 (6 Dec 2009)