Col. William Chamberlin was the first child of Judge Lewis Chamberlin (between 1712 & 14 - May 3, 1772) and Lucretia Woolsey Chamberlin (Abt. 1714 - Jan.15, 1812). He was born on September 23, 1736 in Ringoes, Hunterdon County, New Jersey and died in Buffalo Valley, Union County, Pennsylvania on August 21, 1817. He was married 4 times and fathered 23 children. His first wife was Elizabeth TenBroek (Tinbrook)and they had 6 children, 3 sons and 3 daughters. His second wife was Anne Park, 4 children, 3 sons and 1 daughter. After her death he married her sister, Margaret Park. They had 4 children, 2 sons and 2 daughters. His last wife was Ann Mary Kimble. She gave birth to 8 children, 7 sons and 1 daughter.

William fought in the Revolutionary War, attaining the rank of Colonel. He lived in Amwell Township of Hunterdon County, New Jersey while fighting for Our Country. Col. Chamberlin rendered valuable service to the country during the revolutionary struggle, being Lieut. Col. in the Second Regiment, Hunterdon Co., New Jersey, and was in a number of battles and skirmishes, and at the Battle of Germantown on October 3-4, 1777 had a most distressing experience. His oldest son, Lewis, then 18 years old, had occasion to visit his father on some business or family affair, and learning that a battle was pending decided to remain with his father, and although a civilian took a position in his father's regiment and went into the action. During the battle was struck on the knee by a spent cannonball "and for the want of prompt medical attention " he bled to death on the field. In 1776 his mill, near Clover Hill was burned by a British foraging party.
In 1791 he moved to Buffalo Valley, Union Coounty, Pennsylvania. He married his 4th wife in 1794. He died there in 1817. He is buried in Lewisberg Cemetery where a marble shaft marks his resting place, overlooking the Susquehanna River.
His obituary found in the "Annals of Buffalo Valley" by John Blair Lynn, reads: "August 21, Colonol William Chamberlin. He came from Hunterdon County, New Jersey, where he was born, September 25, 1736. He served as lieutenant colonel in the second regiment, Colonel David Chambers, his commission bering the date 9th September 1777 in November of which year by order of Governor Livingston was directed to call upon Messrs. Penn and Chew at the Union Ironworks to escort them to Worchester, Massachusetts, and deliver them to the Council of that State. He was also directed to purchase in Connecticut or Massachusetts 20,000flints for the Council of New Jersey. He participatedin the Battle of Monmouth, 28th June 1778 where his oldest son, Lewis was killed by a cannonball [Lewis was killed at Germantown 1777] He moved into our valley in 1793 and on the 16th of August 1794, married his fourth wife, Mary KembleName.
. He was the father of twenty-three children, fifteen of whom were born in New Jersey. Of his children, Nelly married John Lawshe, senior; Ann, John Ross; Lucretia, Christian Nevius; William, Enoch and Tenbrooke; Sarah,married to James Wilson; Uriah; Elizabeth, married to William McCreery; Aaron came with him. His fourth wifes children were John, James, Lewis, Mary Frances, Married to John Linn: Joseph P., James D., and Moses, the latter still residing at Milton."

His first three wwives are buried oat the Chamberlin Family Farm Cemetery in Amwell, Hunterdon County, New Jersey.

NOTE: Biography is a compilation of many genealogical sources. PMB