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Leslie Corn

Certified Genealogist® specializing in forensic research, affidavits, & testimony.
Forensic Genealogical Research & Due Diligence
(212)535-3581
New York, New York
United States


  • Family History Research
  • Other Speciality

  • Document Retrieval / Record Agent
  • Dual Citizenship
  • Ethnicity / Religion
  • Family History Research
  • Immigration / Naturalization

  • Family History Research
  • Methodology & Resources
  • Writing & Publishing

  • Author/Writer

  • Forensic Research
  • Heir & Probate Search
Full-service forensic genealogical research.

Certified Genealogist® specializing in due diligence and kinship matters, from research through reports/affidavits and in-court testimony as a qualified expert witness. Coordination of national and international cases. Locating missing persons/heirs. Through associates in other states and countries, research capabilities are worldwide.

Clients include attorneys, executors, realtors, investigators, banks, probate firms, private clients.

Local, regional, and national speaker. On-air appearances for CNN, NBC, CBS, and BBC. Researcher/presenter for Who Do You Think You Are?, NBC and BBC.

Fellow, New York Genealogical and Biographical Society. Graduate, National Institute on Genealogical Research, National Archives, Washington, D.C.

Served as a volunteer at the New York County Clerk’s Office/ Division of Old Records, National Archives NYC, New York City Department of Health in the Vital Records Genealogy Working Group, New York Genealogical & Biographical Society, and Jewish Genealogical Society.

New York, New Jersey, Connecticut, Massachusetts. Internationally: Austria, Belarus, Czech Republic, England, France, Germany, Great Britain, Ireland, Israel, Italy, Japan, Northern Ireland, Poland, Russia, Ukraine. 

forensic, expert testimony, kinship, affidavits, probate, missing heirs

Guide to New York City Research, 3-part series for the New England Historic Genealogical Society

ProQuest Information & Learning Corp's Quick-Start Guide for Genealogists to the Historical Newspapers Collection

New York City's Potter's Field: A Visit to Hart Island's City Cemetery in Bronx County

World War II Fourth Registration Draft Cards: A Newly-Released 20th-Century Resource for 19th-Century Research

New York State Supreme Court Naturalization Records in the New York County Clerk's Office/Division of Old Records

City Clerk's Marriage Licenses, 1908-37: One of 20th-Century Genealogy's Best Primary Sources
 

Boards of Elections, City Registers, Civil Courts, Supreme Courts, Family History Library (Salt Lake City), National Archives, New York Public Library, NYC Department of Health, NYC Municipal Archives, Office of the City Clerk, Surrogate's Courts, Office of the City Clerk of the City of New York, religious institutions, historical societies, cemeteries, museums, New York State Library and Archives (Albany, NY).
Through associates worldwide, research is conducted throughout the United States and in Austria, Belarus, Czech Republic, England, France, Germany, Great Britain, Ireland, Israel, Italy, Japan, Northern Ireland, Poland, Russia, Ukraine. 

  • 21st Century
  • 20th Century
  • 19th Century

Certified Genealogist®; Fellow, New York Genealogical and Biographical Society

Graduate, National Institute on Genealogical Research at the National Archives, Washington, D.C.

New York Genealogical and Biographical Society (Fellow), New York Historical Society, Jewish Genealogical Society, NEHGS, APG, Connecticut Professional Genealogists Council.

BA (English); MA (Psychology)