The Willett family originated in England. The name could be derived from the name William.
Edward Willett (1657-1744) was born in Hertford, England. He immigrated to the colony of Maryland as early as 1666, but returned to London in 1674 to learn the art of working pewter, a metal used in dinnerware and other everyday objects. The family was Anglican (Episcopal).
After returning to Maryland, he prospered as an artisan and purchased various tracts of land one of which became known as "Bealington" on the Patuxent River, Prince George's County. It was the practice to give distinctive names to plantations or farms in colonial Maryland. He married Tabitha Mills and had the following children: Bridgett (b.1699), Ninian (b.1701), Edward (b. 1703), Thomas (b. 1708), William, James, and Ann.
William Willett (1715-1772) married Mary Griffith (1720-1792) in 1737 and lived at Bealington Plantation, which he inherited. He also worked in pewter.
William and Mary's 13 children were: Elizabeth (1738-1760), Edward (1740-1815), William (1743-1814), Verlanda (1746-1820), Jemina (1748-1766), Griffith (1750-1840), Tabitha (1752-1824), Samuel (1754-1793), George E. (1757-1811), John (1759-1787), Rachel (1762-1848), Mary (1764-1819), and James (1768-1851). 
GEORGE E4 WILLETT (WILLIAM3, EDWARD2, EDWARD1) was born April 17, 1757 in Prince Georges County, Maryland, and died July 06, 1811 in Nelson County, Kentucky. He married ELIZABETH SANDERS, daughter of SAMUEL SANDERS and ANNA GORDON. She was born January 24, 1768 in Maryland, and died March 25, 1814 in Nelson County, Kentucky.
Notes for GEORGE E WILLETT:
George E Willett was born on land called Bealington, Prince Georges County, Maryland. He was a sergeant in Colonel Cox's Militia that served under George Rogers Clark of Ft Nelson, Virginia. This area was later Louisville, Kentucky. His brother, Samuel, was a private in the same regiment. They fought against the Indians who had been incited by the British. They were engaged in many bloody battles from 1782 until 1794. The Indians were defeated at the battle of "Fallen Timber" in northwestern Ohio before Kentucky was freed of the threat from Indian attacks.
George E Willett received a Virginia land grant that reads as follows:
Beverly Randolph, Esquire, governor of the Commonwealth of
Virginia To all to whom these presents shalt come Greetings:
Know ye that by virtue and in consideration of a certificate granted
by the County Court of Jefferson, under the Act of the General Assembly
for the relief of certain poor persons now resident on the Western
Frontier, there is granted by the said Commonwealth unto GEORGE
WILLETT assignee of Richard Simmons a certain tract or parcel of
land containing four hundred acres by Survey, bearing date the 13th
day of October, 1783, lying and being in the County of Jefferson on
the north side of the Rolling Fork, and on the Main fork of 's Creek
and bounded as follows... To have and to hold the said tract of land
with it's appurtenances to the said GEORGE WILLETT and his HEIRS
forever. In witness whereof the said Beverley Randolph Esquire,
Governor of the Commonwealth of Virginia here unto set his hand and
caused lesser seal of the said commonwealth to be affixed at Richmond
on the twenty fourth day of October, in the year of our Lord, one
thousand seven hundred & Eighty nine and of the commonwealth the
George E Willett married Elizabeth Sanders, the daughter of Samuel Sanders and Anna Gordon. They built their home on the Virginia Land Grant, that George E Willett had received in what eventually became Nelson County, Kentucky. Elizabeth Sanders had three brothers: Samuel, Joseph, and Joshua Sanders, and a sister - Nancy. Her brothers first lived in Pottinger's Fort and then moved to Green County, Kentucky.
George E Willett, with his younger brothers and sister, in 1778, received from their mother a slave named Minta. Minta is mentioned as a tithable of George E Willett in the 1785 and 1788 tax lists of Nelson County, Virginia. George E Willett was listed as living on Pottinger's Creek and his brothers Samuel Willett and James Willett were residing nearby. In the 1810 census George E Willett has in his household his wife, five sons, 2 daughters, and nine slaves. He wrote his will on July 1, 1811 and it was probated in Nelson County, on August 19, 1811. He named his wife and all his children except his two oldest daughters in his will, the oldest daughters having received their inheritance at the time of their marriages. Elizabeth, the widow of George E Willett, died of the cold plague on March 23, 1815. They are both buried in the old orchard on their property in unmarked graves.
George E Willett and his wife Elizabeth had no church affiliation. In the Gethsemane Monastery baptismal records when George W Willett, their son was baptized in 1865, his parents were given with the word "infidel's", a term then used to denote they were not practicing members of any church.
The names of their children have been taken from his will, a Guardian Account in Nelson County, dated August 15, 1814, which names his six minor children, and an account written by their son George E Willett when they had a suit against his nephew John Willett who had been the guardian of his youngest daughter, and one of his executors. Most of his heirs were named: Mary Slaughter, formerly Mary Willett; Jacob Grafft and Nancy, his wife, formerly Willett; David Grafft and his wife, Susan, formerly Willett; John Willett, Samuel Willett, Richard Willett, George W Willett, William R Price and Elizabeth, his wife, formerly
Willett. His son Griffith Willett, and daughter Mary Eliza were not named in the suit.
More About GEORGE E WILLETT:
Military service: Sgt., Colonel Cox's Militia serving under George Rogers Clark at Fort Nelson, Virginia
Children of GEORGE WILLETT and ELIZABETH SANDERS are:
5. i. RICHARD5 WILLETT, b. December 28, 1800, Nelson County, Kentucky; d. Aft. 1886, Waverly, Union County, Kentucky.
ii. NANCY WILLETT, b. Abt. 1788.
iii. SUSAN WILLETT, b. March 14, 1792.
iv. JOHN S WILLETT, b. 1794.
6. v. SAMUEL WILLETT, b. September 08, 1796, Nelson County, Kentucky; d. November 29, 1867, Union County, Kentucky.
vi. GRIFFITH WILLETT, b. October 05, 1798.
vii. JAMES WILLETT, b. 1802.
Notes for JAMES WILLETT:
James Willett died young and is buried in an old orchard on Bealington
viii. GEORGE WASHINGTON WILLETT, b. October 08, 1804.
ix. ELIZABETH WILLETT, b. Abt. 1806; m. WILLIAM PRICE.
x. MARY ELIZA WILLETT, b. Abt. 1808; d. November 1895; m. ANDREW H SLAUGHTER, April 03, 1833.
More About ANDREW H SLAUGHTER:
More About ANDREW SLAUGHTER and MARY WILLETT:
Marriage: April 03, 1833
xi. MARY WILLETT, b. Abt. 1788.
Notes for MARY WILLETT:
Mary Willett died young and is buried in an old orchard on Bealington