This Floyd family originated in Brecknockshire, Wales. The founder of the family in America, Richard Floyd (ca. 1620-1690), first appeared in American records in the late 1660s as a leading landowner on the North Shore of Long Island, first in Huntington, then in Setauket.
A half-century later, in 1718, his son Richard Floyd II (1665-1738), bought over 4,400 acres of property from William “Tangier” Smith of the Manor of Saint George. The property stretched six miles north from Moriches Bay and approximately one mile west from the Mastic or Forge River. It included use rights for the Great South Beach on what is now Fire Island. Richard Floyd II gave this property to his youngest son, Nicoll Floyd (1703-1755).
The first Floyd to live on the estate, Nicoll Floyd built the first portion of the “Old Mastic House” in 1724, constructing a two-story, six-room shingled wood frame house. He developed the land into a prosperous plantation, using both slave and free laborers to raise grain, flax, sheep, and cattle. Nicoll Floyd expanded the home as his wealth and his family grew. Nicoll Floyd’s oldest son, William Floyd(1734-1821) inherited the property in 1755 at the age of 20.
William Floyd became an important plantation owner and was active in local politics. In 1774, he was a delegate from New York in the First Continental Congress. As a member of the Second Continental Congress, 41-year-old William Floyd was the first of the New York delegates to sign the Declaration of Independence on August 2, 1776. After the Revolutionary War, William Floyd (who was in exile from 1777 to 1783) moved back to Mastic, and enlarged the house, making it suitable for entertaining such national leaders as Thomas Jefferson and James Madison.
Floyd moved from Long Island to Westernville, New York, in 1803, where he died in 1821, leaving the Mastic property to his son Nicoll Floyd II (1762-1852).