- [S200] Civil War Soldiers and Sailors Database, online at http://www.nps.gov/civilwar/…, National Park Service.
- [S436] "Kentucky Births and Christenings, 1839-1960." Database, compiled by The Churh of Jesus Christ of Latter-day Saints. Available online at http://www.familysearch.org/:.
- [S573] Hiram Back household, 1860 US Census, Morgan, Kentucky, population schedule, Division 2, West Liberty PO, sheet 100, dwelling 665, family 665, National Archives micropublication M653-388, Downloaded from Ancestry.com July 2012.
- [S863] Henry C Calhoun household, 1930 US Census, Breathitt, Kentucky, population schedule, Elliotsville, Enumeration District 13, sheet 23A, dwelling 116, family 119, National Archives micropublication T626, Downloaded June 2013 from Ancestry.com.
- [S877] Nancy Back household, 1880 US Census, Breathitt, Kerntucky, population schedule, Elliotsville, Enumeration District 15, sheet 29, dwelling 235, family 235, National Archives micropublication T9-405, Downloaded July 2013 from Ancestry.com.
- [S1564] JJC Back household, 1900 US Census, Breathitt, Kentucky, population schedule, Jackson, Enumeration District 1, sheet 11A, dwelling unknown dwelling, family unknown family, National Archives micropublication T623-510.
- [S1565] Lexington Herald, Lexington, Kentucky Obituary for JJC Bach, June 20 1915, page 3.
- [S1568] Mary Bach household, 1920 US Census, Breathitt, Kentucky, population schedule, Jackson, Enumeration District 39, sheet 1A, dwelling 1, family 1, National Archives micropublication T625-559.
- [S1587] "Ohio, Marriages, 1800-1958." Database. Compiled by The Church of Latter-day Saints. Available online at http://www.familysearch.org/.
- [S1589] Lazarus Bach household, 1920 US Census, Breathitt, Kentucky, population schedule, Precinct 16, Enumeration District 42, sheet 7B, dwelling 118, family 123, National Archives micropublication T625-559.
- [S1591] Stephen Back household, 1880 US Census, Breathitt, Kentucky, population schedule, Frozen, Enumeration District 15, sheet 5, dwelling 32, family 32, National Archives micropublication T9-405.
- [S1594] John Back household, 1860 US Census, Marris, Kansas Territory, population schedule, Grove, sheet 7, dwelling 53, family 53, National Archives micropublication M653-351.
- [S1597] Loucinda Combs, Death Certificate 27652/4346 (December 2, 1940), State of Kentucky.
- [S1598] William Gabbard household, 1880 US Census, Breathitt, Kentucky, population schedule, Jetts Creek, Enumeration District 14, sheet 19, dwelling 163, family 163, National Archives micropublication T9-404.
- [S1599] Woodford Back, Death Certificate 18892/2060 (September 21, 1921), State of Kentucky.
- [S1688] Joesph Back household, 1850 US Census, Breathitt, Kentucky, population schedule, District 1, sheet 18, dwelling 140, family 140, National Archives micropublication M432-193.
- [S1854] Clifton Back household, 1920 US Census, Breathitt, Kentucky, population schedule, Jackson, Enumeration District 39, sheet 7A, dwelling 101, family 104, National Archives micropublication T625-559.
- [S1859] San Francisco Chronicle, San Francisco, California Anchor Away, My Girl, March 9, 1944, 42.
- [S1877] "Kentucky, Wills and Probate Records, 1774-1989." Index and images. Available online at https://www.ancestry.com/search/collections/9066/; citing Kentucky County, District and Probate Courts.
- [S3059] James F Back household, 1900 US Census, Menifee, Kentucky, population schedule, Magisterial District 2, Enumeration District 61, sheet 20, dwelling 320, family 320, National Archives micropublication T623.
- [S3721] Herschel G Back Draft Registration, US World War I Draft Registration Card (Washington DC: NARA). Hereinafter cited as WWI Draft Card.
- [S3722] Grannis Back Draft Registration, US World War I Draft Registration Card (Washington DC: NARA). Hereinafter cited as WWI Draft Card.
- [S3725] Luther Back Draft Registration, US World War I Draft Registration Card (Washington DC: NARA). Hereinafter cited as WWI Draft Card.
- [S3731] Joseph Woodford Back Draft Registration, US World War I Draft Registration Card (Washington DC: NARA). Hereinafter cited as WWI Draft Card.
- [S3734] John Woodford Back Draft Registration, US World War I Draft Registration Card (Washington DC: NARA). Hereinafter cited as WWI Draft Card.