• The George Washington Masonic National Memorial (gwmemorial.org)
  • The Masonic Digital Archives – GWMNMA (gwmemorial.org)
  • J.H. Rathbone Museum – J.H. Rathbone MuseumJ.H. Rathbone Museum
  • Indiana University Center for Fraternal Collections and Research
  • Masonic Library and Museum Association
  • Des Moines County Historical Society – To educate and preserve the history of Des Moines County Iowa. (dmchs.org)
  • Home – Midwest Old Settlers & Threshers Association (oldthreshers.com)
  • https://www.danish-modern.co.uk (danish-modern.co.uk)