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Dennis A Hogan

Researcher, speaker, historian specializing in NY State and Ireland utilizing best practices.
Fairport, New York
United States


  • Family History Research
  • Speaking / Presenting

  • Document Retrieval / Record Agent
  • Dual Citizenship
  • Family History Research
  • Heraldry / Lineage Societies
  • Immigration / Naturalization
  • Military
  • Tutor / Coach

  • Family History Research
  • Methodology & Resources
  • Technology
  • Available for in-person events
  • Available for virtual events

  • House Historian / Local History

My passion for best practices in research and attention to detail can assist you toward your goals. Your project will benefit from my thorough knowledge of Irish and New York State resources, both online and offline.


"Thanks very much for the excellent job and we did receive all four e-mails! We loved your experience and professionalism with this matter and, of course, we are delighted with your findings. ... We don't see a lot of NY cases, however we will be sure to direct whatever we get to you for your investigation. ..."

Brian W. Hutchison
Chairman and C.E.O.
GEN-FIND Research Associates, Inc.
Nanaimo, British Columbia, Canada

"Dennis Hogan's knowledge of how to gather and search for the information required is amazing! His patience, understanding and sharing of my family's background was like a gift to me that I can now share with my children and grandchildren. It was like a huge puzzle to be put together that is now complete."

Linda Remis
Ontario, New York

  • Searching US Records for Your Irish Ancestors
  • Searching Irish Records for Your Ancestors
  • Griffith’s Valuation for Genealogy
  • Searching for Your Revolutionary War Ancestors
  • Searching for Your Civil War Ancestors
  • Dual Citizenship for Irish-Americans
  • Artificial Intelligence for Genealogy
  • Using the Fulton History Website
  • Maximizing the Benefits of FamilySearch
  • Googling for Genealogy
  • Google Maps for Genealogy
  • Google Earth for Genealogy
  • Survey of Brick Wall Techniques

  • 20th Century
  • 19th Century
  • 18th Century

  • Association of Professional Genealogists (APG)
  • National Genealogical Society (NGS)
  • Rochester Genealogical Society (RGS)
  • Ontario County Genealogical Society (OCGS)
  • Town of Gorham Historian
  • Town of Gorham Historical Society

B. S. Mathematics, St. John Fisher University