• [S75] Bethany Barnett Kendall, "unknown cd1," e-mail message from e-mail address (Massachusetts) to Ethel Somers. Hereinafter cited as "E-Mail: Bethany Barnett."
  • [S94] Letter from Coleman Persily (206 Yosemite Roade, San Rafael, California) to Helen Nash May; Helen Nash May (Harrison, New York).
  • [S95] "Descendeants of: Lawrence Dundas, 1st Bart. of Kerse", March 1999, unknown author (unknown author address), to Patrick Dundas (83 Garfield Place, Brooklyn, NY); Helen Nash May, Harrison, New York. Hereinafter cited as "Dundas Family Tree."
  • [S96] Catherine Dundas Elliot, compiler, "The Zetland Dundas' Family Tree"; Ancestral File (2002), Helen Nash May, Harrison, New York. Hereinafter cited as "Dundas Family Tree."
  • [S102] Interview with Dorothy Dundas (Massachusetts), by Helen Nash May. Helen Nash May (Harrison, New York).
  • [S120] Weissman Family Tree, online www.weissmanfamily.net. Hereinafter cited as Weissman Tree.
  • [S139] Michael Persily, "unknown cd1," e-mail message from e-mail address (Chicago, Illinois) to Helen Nash May. Hereinafter cited as "E-mail: Michael Persily."
  • [S157] Boston Museum of fine Arts, "View From Above: The Photographs of Bradford Washburn", View From Above: The Photographs of Bradford Washburn, online http://www.ftaoi.com/aa/1aa366.htm, printout dated August 20, 2004. Hereinafter cited as "Photographs of Bradford Washburn."
  • [S170] Unknown author National Cyclopedia of American Biography (New York: n.pub., 1939). Hereinafter cited as National Cyclopedia of Amer. Biog.
  • [S171] Carolyn Weisberger, "unknown cd1," e-mail message from e-mail address (Pittsburgh, Pennsylvania) to Helen Nash May. Hereinafter cited as "E-mail: Carolyn Weisberger."
  • [S172] Online site: unknown cd1, by unknown photographer; unknown series; unknown repository, unknown repository address. Online http://www.imdb.com/name/nm0242177/; unknown file name; Printout dated July 27, 2006.
  • [S174] Bradford Washburn, Explorer, 96 Dies, New York Times Obituary, Bradford Washburn, Lexington, Massachusetts, January 16, 2007, B8. Hereinafter cited as NY Times.
  • [S184] Rosa Porcilan Drutin, "unknown cd1," e-mail message from e-mail address (Tel-Aviv, Israel) to Helen Nash May. Hereinafter cited as "E-Mail: Drutin, Rosa Porcilan."
  • [S197] Clara Wasser birth certificate, paper, digital 11665 (February 10,1907), unknown repository, unknown repository address.
  • [S203] Sharon Nash, "unknown cd1," e-mail message from e-mail address (Sunnydale, California) to Helen May. Hereinafter cited as "E-mail: Sharon Nash."
  • [S208] Michael Persily, Obituary: Michael Persily, Chicago, Illinois, May 4, 2009, 1. Hereinafter cited as Chicago Tribune.
  • [S215] Interview with Sheila Trugman (Worcester, Massachusetts), by Helen May. Helen Nash May (Harrison, New York).
  • [S217] Eva Porcilan, "unknown cd1," e-mail message from e-mail address (Israel) to Helen Nash May. Hereinafter cited as "E-Mail: Eva Porcilan."
  • [S226] Interview with Fred Persily (Woodrbridge, Connecticut), by Helen May. Helen Nash May (Harrison, New York).
  • [S252] Chaim Rosenberg, Eisner Tree received from Chaim Rosenberg (New York: Chaim Rosenberg, 2005). Hereinafter cited as Eisner Tree.
  • [S263] Porcilan Records e-mail from Majsze Olsztajn, Helen Nash May, Harrison, New York; e-mail address, 1908.
  • [S270] GArdner, Shannon Michael, Tampa Bay Times, St Petersburg, Florida, August 11, 2013. Hereinafter cited as Obit- Jack Persily Obit - Shannon Gardner.
  • [S272] Elizabeth Newton Anton Anton, "unknown cd1," e-mail message from e-mail address (New York) to Patrick Dundas. Hereinafter cited as "E-Mail: Elizabeth Anton."
  • [S274] Interview with Fred Persily (New Jersey), by Helen May. Helen Nash May (Harrison, New York).
  • [S275] Deirdre Newton, "unknown cd1," e-mail message from e-mail address (unknown address) to Amanda May Dundas. Hereinafter cited as "E-Mail: Deirdre Newton."
  • [S287] Mathew Anton, "unknown cd1," e-mail message from e-mail address (New York) to Amanda May Dundas. Hereinafter cited as "E-Mail: Mathew Anton."
  • [S293] Jonathan Nash, "unknown cd1," e-mail message from e-mail address (Palo Alto, California) to Helen May. Hereinafter cited as "E-mail: Jonathan Nash."
  • [S302] Unknown cd1, Worcester Telegram and Gazette, Worcester, Massachusetts, January 20-23, 2020. Hereinafter cited as Worcester T & G.
  • [S309] Melissa Myers, "unknown cd1," e-mail message from e-mail address (Boca Raton, Florida) to Helen May. Hereinafter cited as "E-mail: Melissa Myers."
  • [S315] Wikipedia, online wikipedia.org. Hereinafter cited as Wiki.
  • [S317] Anna Wasser birth certificate, paper, digital 11665 (July 19, 1908), unknown repository, unknown repository address.