• [S44] "Diary of Fergus Smith Tait," (MS, 1881; Mercer County Pennsylvania); owned 1998 by g-gdaughter, Marilyn Rae Tait; Scottsdale, Maricopa, Arizona, USA.
  • [S86] Marilyn Rae Tait, birth certificate 1647080-1943 (10-18-1943), Commonwealth of Pennsylvania, Dept. of Health, Harrisburg, Dauphin, Pennsylvania, USA.
  • [S157] 'Ohio Deaths, 1908-1932, 1938-1944 and 1958-2002", online on Inc, 2006 The Generations Network, www.Ancestry.Com.
  • [S348] Unknown cd1 household, 1930 U.S. Census, Allegheny Co., Pennsylvania, Population Schedule Ancestry.com, National Archive Micropublication T626-1993.
  • [S394] Maria L. Johnson, Death Certificate 005-58-6 (16 Sep 1939), Johnson Ancestral Family Binder, unknown repository address. Hereinafter cited as Maria Johnson Death Certificate.
  • [S428] Unknown cd1 household, 1930 U.S. Census, Venango Co., Pennsylvania, Population Schedule Ancestry.com, National Archive Micropublication T626-2153.
  • [S576] David Fergus Tait entry, David Fergus Tait Death Certificate, Mercer County Court House, Mercer, Mercer, Pennsylvania, USA.
  • [S660] Unknown cd1 household, 1930 U.S. Census, Sitka, Alaska Territory, Population Schedule Ancestry.com, National Archive Micropublication T626-2626.
  • [S664] Zahniser Service, The Sharon Herald, Sharon, PA, 23 December 1959.
  • [S703] Unknown cd1 household, 1930 U.S. Census, Erie Co., Pennsylvania, Population Schedule Ancestry.com, National Archive Micropublication T626-2037.
  • [S929] Loretta B. DeSantis and Sally C. Dufford Mercer County, Pennsylvania Cemetery Inscriptions (Sharon, PA: Mercer County Genealogical Society, 1982), Volume 9.
  • [S977] Patricia Westerfield, "John Williamson," e-mail message from e-mail address (Unknown Addr.) to Karl Johnson.
  • [S995] Cheryl Mays, "Anna Wittig Surname Email," e-mail message from e-mail address (unknown address) to Karl M. Johnson, 27 Dec 2009.
  • [S1020] Janie Smith, "Esther [Williamson] Thompson Death Notice," e-mail message from e-mail address (Eden NY) to Karl Johnson, 3 May 2011.