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geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:827867
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nebraskagravestones.org/cemetery.php?cemID=110 (23 Jul 2012)
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.interment.net/data/us/ne/douglas/calvary/index.htm (22 Oct 2009)
Cemetery records of Calvary Cemetery in Omaha, Douglas County, Nebraska
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politicalgraveyard.com/geo/NE/DO.html#RK30ZLWZN (26 Mar 2009)
A database of political history and cemeteries, with brief biographical entries for 192,291 U.S. political figures, living and dead, from the 1700s to the present.
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www.findagrave.com/php/famous.php?page=cem&FScemeteryid=100449
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homepages.rootsweb.ancestry.com/~sandlier/marge/calvary/clv-cem.htm (15 Aug 2009)
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www.usgennet.org/usa/topic/cemetery/nebraska/cemeteries/calvarycatholiccem.htm (15 Sep 2005)
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www.rootsweb.ancestry.com/~nedougla/html/cemlist.htm (24 Feb 2007)
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www.rootsweb.ancestry.com/~nesgs/Ancestree/vol16/v16n2p040.htm#42
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www.findagrave.com/cgi-bin/fg.cgi?page=cr&CRid=100449
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www.wheeler-roots.org/showmap.php?cemeteryID=14&tree= (26 Aug 2010)