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geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:1969034
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www.findagrave.com/cgi-bin/fg.cgi?page=cr&CRid=2239097
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iowagravestones.org/cemetery_list.php?CID=1&cName=Pleasant Grove (1 May 2013)
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iagenweb.org/adair/cemeteries/pleasantgrove/pleasantgrovecem.htm (9 Sep 2010)
Historical and genealogical information of interest to the Adair County, Iowa researcher.
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iagenweb.org/adair/cemeteries/pleasantgrove/pleasantgrovecemetery.htm (9 Sep 2010)