Preserving the Genealogical History of Long Island

Welcome to the Post Morrow Foundation Genealogy Website, your gateway to the rich tapestry of Long Island's familial history. Nestled within the digital archives of this foundation lies a treasure trove of genealogical records meticulously compiled and preserved over generations.

We invite you to embark on a captivating journey through time, tracing the roots of Long Island's diverse and dynamic families. Whether you're a passionate genealogist, a curious historian, or a descendant seeking to connect with your heritage, our database offers a comprehensive and invaluable resource. Discover the stories, connections, and legacies that have woven the intricate fabric of Long Island's past. Explore the Post Morrow Foundation Genealogy Website today and unlock the secrets of your family's history.

This website expands the scope of the original “Brookhavensouthhaven.org” website created by John Detz.  The two websites complement each other.  Use them together. You will see a link to that site which is very rich in historical and biographical sketches and with the cemeteries in the area.  It is rich in photos and maps of Brookhaven and South Haven.

This website, “postmorrowgeneology.org”, concentrates on names, dates and family ancestry going back to the earliest ancestor arriving in North American.  As of September 2024, we have over 68,000 individuals and 29,600 families.  This update also expands the geographical coverage and now includes families from Sayville eastward to Old Mastic.  You will see the migration of the early settlers from the Setauket area southward thru Manorville and Yaphank.  Also, the migration from the eastern long island communities such as Southold, East Hampton, Southampton, etc. westward.  Look for the articles by Ken Spooner that bring details of the early families of Old Mastic and Bellport.  Also, this database includes the names of 32 passengers on the Mayflower whose descendants have a connection to the south shore of Long Island.  

Almost 40,299 individuals connect in some way to Mrs. Elizabeth Morrow family.  Some local families include the Edwards, Brown, Roe, Woodhull, Hawkins, Howell Raynor, Terry, Paige, Smith, Overton, etc.  

As a helpful hint in using this database, Click on “Families, then “Find”, then “Surnames” and you will get a glimpse of how extensive the database is!

Are you passionate about Long Island’s history and eager to uncover its ancestral roots? We invite you to be a part of our thriving community dedicated to preserving and celebrating Long Island’s genealogical history.