Sources

• {# 1} Szypula Family Tree, Jennifer Chapman, (22 SEP 2007)
  where: page 5
• {# 2} U. S. Social Security Death Index, RootsWeb.com, ssdi.genealogy.rootsweb.com
  
  Name     Birth     Death     Last Residence     Last Benefit     SSN     Issued
  EDWARD MACK      09 Oct 1893     Sep 1975     11758 (Massapequa, Nassau, NY)     (none specified)     054-09-9776     New York
  where: http://ssdi.genealogy.rootsweb.com/cgi-bin/ssdi.cgi?ssn=054-09-9776
  citation: 2 FEB 2008, author: Maciej Róg

• web robots — no