54325 Main Road

PO Box 1

Southold, NY 11971








Prince Building:

54325 Main Rd., Southold NY 11971

Museum Complex:

55200 Main Rd., Southold NY 11971

Nautical Museum at Horton Point Lighthouse:
3575 Lighthouse Rd., Southold NY 11971

Prince Building Hours:

Society Office: Monday—Friday 10am-2pm
Gift Shop: Monday—Friday 10am-2pm

Archives: By Appointment


Treasure Exchange: 

April 1st through Mid-December    

Tues., Thurs., Fri., Sat., 10am–4pm

Wednesday 1-4pm


January through March             

Saturdays only, 11 am–3 pm

©2019 Southold Historical Society

"Franklin" Mile Markers
The Milemarkers located on the North Fork of Long Island were placed there in the early 19th century  to mark the Post Road to Boston.Supposedly, the roads through Connecticut were too poor to be used, and so the Post Road came out from New York City onto Long Island to the tip of Orient Point. There a small ferry could take the Postman to far eastern Connecticut where he could travel on to Boston, Massachusetts.


Marker numbers 1-6 were located west of Laurel, and no longer exist (some believe they may have been wooden and did not survive). Robert P. Long's 1991 book on the Markers has a number of errors regarding the existing stones and those that were lost or replaced. Below are images of all of the existing North Fork markers in their current state.


Mouseover or click images for more information.