-  1870 U.S. census, Beaver City, Beaver Co., Utah Territory, p. 1, Margaret Keyes, NARA. “Mormon Pioneer Overland Travel,” database, 1847–1868, The Church of Jesus Christ of Latter-day Saints, Mormon Pioneer Overland Travel (http://history.lds.org/overlandtravels, accessed Mar. 2014), Margaret Elizabeth Keys. “Family Tree,” database, FamilySearch (https://familysearch.org, accessed Dec. 2015), Margaret Elizabeth McFadden LKDB-N2R . “Utah Cemeteries and Burials,” database, Utah Division of State History (http://heritage.utah.gov/history/cemeteries, accessed Apr. 2016), Margret E Keyes. Find a Grave, database and images (http://findagrave.com, accessed Mar. 2014), memorial no. 103134, Margret E Keyes; Mountain View Cemetery, Beaver, UT.