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geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:483295
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www.interment.net/data/us/ks/atchison/sapp_cemetery.htm (16 May 2010)
Cemetery records of Sapp Cemetery in Atchison County, Kansas
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www.findagrave.com/cgi-bin/fg.cgi?page=cr&CRid=93736
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www.kshs.org/genealogists/vital/cemeteries1906results.php?county=AT (4 May 2010)