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geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:827542
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www.rootsweb.ancestry.com/~nebutler/bohemian1.html
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www.rootsweb.ancestry.com/~nesgs/Ancestree/vol16/v16n2p040.htm#42
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butlercountygallery.com/drupal/cem_detail/BNC (2 Mar 2013)
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butlercountygallery.com/drupal/sites/default/files/BNC.pdf (16 Oct 2010)