- [S25] Holston Territory Genealogical Society, compiler, Families and History of Sullivan County, Tennessee, Volume One, 1779-1992 (Waynesville, NC: Walsworth Publishing, 1992). Hereinafter cited as Families and History of Sullivan County, Tennessee.
- [S102] Fred Wagner, "John Harr-Susannah Snapp Family Group Sheet", July 1993 (536 Barr Road, Blountville, Tennessee 37617).. Hereinafter cited as "Harr-Snapp FGS".
- [S233] Decendancy chart of George Washington Willing, prepared 19 January 1955, by Lovell J. Morris Jr., 103 Florida Avenue, Signal Mountain, TN 37333-1807. Hereinafter cited as George Washington Willing Descendancy Chart.
- [S381] Jan Hornick, GEDCOM of John Harr Descendants, September 12, 1998. Hereinafter cited as GEDCOM of John Harr Descendants.
- [S429] Information provided by Shirley Fredrickson. Hereinafter cited as Information provided by Shirley Fredrickson.
- [S486] Family Quest Archives, 1850 U. S. Census, Sullivan, Sumner, Tipton, & Van Buren Cos., Tennessee, Series M432, Roll 897, CD-ROM (heritagequest.com: Heritage Quest, 1 June 1850), U. S. Population Schedule. Hereinafter cited as 1850 U. S. Census, Sullivan, Sumner, Tipton, & Van Buren Cos., Tennessee.
- [S638] Bob's Genealogy Filing Cabinet, Zacharias Bard (ca 1730 - ca 1795), online http://home.nc.it.com/rwbaird/baird/bardzacharias.html. Hereinafter cited as Zacharias Bard Web Page.
- [S671] Cecil O'Dell, Pioneers of Old Frederick County, Virginia (Marceline, Missouri: Walsworth Publishing Company, 1995). Hereinafter cited as Pioneers of Old Frederick County, Virginia.
- [S672] Wilmer L. Kerns Ph.D, Frederick County, Virginia: Settlement and Some First Families of Back Creek Valley 1730-1830 (Baltimore, MD: Gateway Press, Inc., 1995). Hereinafter cited as Frederick County, Virginia: Settlement and Some First Families of Back Creek Valley 1730-1830.
- [S673] U. S. Population Schedule, 1 June 1880, 1880 U. S. Census, Macoupin Co., Illinois, Washington, DC, National Archives and Records Administration, Series T9, Roll 232.
- [S676] U. S. Population Schedule, 1 June 1880, 1880 U. S. Census, Stewart (last part), Sullivan, and Sumner (first part) Cos., Tennessee, Washington, DC, National Archives and Records Administration, Series T9, Roll 1281.
- [S683] Family Quest Archives, 1870 U. S. Census, Sullivan Co., Tennessee, Series M593, Roll 1565, CD-ROM (heritagequest.com: Heritage Quest, 1 June 1870), U. S. Population Schedule. Hereinafter cited as 1870 U. S. Census, Sullivan Co., Tennessee.
- [S684] Alfred Droke, Handwritten Report on Simon Harr, with copy transcribed to computer by Robert E. Harr in 1979, Copy in researcher's file, Fairfield Glade, Tennessee.
- [S693] Family Quest Archives, 1830 U. S. Census, Carter, Marion, Monroe, Anderson, Washington, Bledsoe, Sullivan, and Rhea Cos., Tennessee, Series M19, Roll 175, CD-ROM (heritagequest.com: Heritage Quest, June 1, 1830), U. S. Population Schedule. Hereinafter cited as 1830 U. S. Census, Carter, Marion, Monroe, Anderson, Washington, Bledsoe, Sullivan, and Rhea Cos., Tennessee.
- [S747] Family Quest Archives, 1860 U. S. Census, Sullivan and Sumner Cos., Tennessee, Series M653, Roll 1275, CD-ROM (heritagequest.com: Heritage Quest, 1 June 1860), U. S. Population Schedule. Hereinafter cited as 1860 U. S. Census, Sullivan and Sumner Cos., Tennessee.
- [S1009] U. S. Population Schedule, 1 January 1920, 1920 U. S. Census, Sullivan Co., TN, Washington, DC, National Archives and Records Administration, Series T625, Roll 1766.
- [S1165] U. S. Population Schedule, 1 January 1920, 1920 U. S. Census, Greene Co., Illinois, Washington, DC, National Archives and Records Administration, Series T625, Roll 368.
- [S1203] U. S. Population Schedule, 1 June 1900, 1900 U. S. Census, Washington Co., Virginia, Washington, DC, National Archives and Records Administration, Series T623, Roll 1731.
- [S1204] U. S. Population Schedule, 1 June 1900, 1900 U. S. Census, Sillivan Co., Tennessee, Washington, DC, National Archives and Records Administration, Series T623, Roll 1601.
- [S1209] U. S. Population Schedule, 15 April 1910, 1910 U. S. Census, Sullivan Co., Tennessee, Washington, DC, National Archives and Records Administration, Series T624, Roll 1522.
- [S1210] U. S. Population Schedule, 1 June 1900, 1900 U. S. Census, Grundy Co., Missouri, Washington, DC, National Archives and Records Administration, Series T623, Roll 857.
- [S1222] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Sullivan Co., Tennessee, Washington, DC, National Archives and Records Administration, Series T626, Roll 2281.
- [S1242] U. S. Population Schedule, 1 June 1880, 1880 U. S. Census, Jefferson (last part), and Kanawha (first part) Cos., West Virginia, Washington, DC, National Archives and Records Administration, Series T9, Roll 1405.
- [S1246] U. S. Population Schedule, 1 June 1900, 1900 U. S. Census, Macoupin Co., Illinois, Washington, DC, National Archives and Records Administration, Series T623, Roll 324.
- [S1248] U. S. Population Schedule, 1 June 1900, 1900 U. S. Census, Knox Co., Missouri, Washington, DC, National Archives and Records Administration, Series T623, Roll 868.
- [S1256] U. S. Population Schedule, 1 June 1900, 1900 U. S. Census, Gilmer Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T623, Roll 1758.
- [S1264] U. S. Population Schedule, 1 June 1900, 1900 U. S. Census, Tucker Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T623, Roll 1773.
- [S1266] U. S. Population Schedule, 15 April 1910, 1910 U. S. Census, Macoupin Co., Illinois, Washington, DC, National Archives and Records Administration, Series T624, Roll 308.
- [S1277] U. S. Population Schedule, 15 April 1910, 1910 U. S. Census, Knox Co., Missouri, Washington, DC, National Archives and Records Administration, Series T624, Roll 793.
- [S1280] U. S. Population Schedule, 15 April 1910, 1910 U. S. Census, Gallatin Co., Montana, Washington, DC, National Archives and Records Administration, Series T624, Roll 832.
- [S1283] U. S. Population Schedule, 15 April 1910, 1910 U. S. Census, Gilmer Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T624, Roll 1680.
- [S1285] U. S. Population Schedule, 15 April 1910, 1910 U. S. Census, Marion Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T624, Roll 1687.
- [S1292] U. S. Population Schedule, 15 April 1910, 1910 U. S. Census, Tucker Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T624, Roll 1697.
- [S1297] U. S. Population Schedule, 1 January 1920, 1920 U. S. Census, Macoupin Co., Illinois, Washington, DC, National Archives and Records Administration, Series T625, Roll 388.
- [S1301] U. S. Population Schedule, 1 January 1920, 1920 U. S. Census, Clark Co., Missouri, Washington, DC, National Archives and Records Administration, Series T625, Roll 910.
- [S1314] U. S. Population Schedule, 1 January 1920, 1920 U. S. Census, Cumberland Co., Tennessee, Washington, DC, National Archives and Records Administration, Series T625, Roll 1736.
- [S1317] U. S. Population Schedule, 1 January 1920, 1920 U. S. Census, Gilmer Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T625, Roll 1952.
- [S1318] U. S. Population Schedule, 1 January 1920, 1920 U. S. Census, Harrison Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T625, Roll 1956.
- [S1320] U. S. Population Schedule, 1 January 1920, 1920 U. S. Census, Marion Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T625, Roll 1961.
- [S1327] U. S. Population Schedule, 1 January 1920, 1920 U. S. Census, Tucker Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T625, Roll 1967.
- [S1339] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Franklin Co., Ohio, Washington, DC, National Archives and Records Administration, Series T626, Roll 1792.
- [S1344] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Macoupin Co., Illinois, Washington, DC, National Archives and Records Administration, Series T626, Roll 539.
- [S1353] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Knox Co., Missouri, Washington, DC, National Archives and Records Administration, Series T626, Roll 1207.
- [S1354] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Lee Co., Iowa, Washington, DC, National Archives and Records Administration, Series T626, Roll 664.
- [S1365] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Harrison Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T626, Roll 2535.
- [S1366] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Grant Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T626, Roll 2532.
- [S1370] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Pendleton Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T626, Roll 2551.
- [S1374] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Marion Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T626, Roll 2542.
- [S1377] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Tucker Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T626, Roll 2556.
- [S1378] U. S. Population Schedule, 1 April 1930, 1930 U. S. Census, Wirt Co., West Virginia, Washington, DC, National Archives and Records Administration, Series T626, Roll 2559.