I was unable to find the burial site for John. Below note the burial is shown as the Old Burying Ground, nearly opposite his house.

Noble Genealogy
Author: Lucius Boltwood
Call Number: R929.2 N752
The Descendants of Thomas Noble of Westfield, Massachusetts who came from Europe.
Pages 18-19

"THIRD GENERATION AND CHILDREN.
13. JOHN NOBLE, s. of John, was b. in Westfield, Mass., Feb. 15, 1685, and d. in New Milford, Conn., in the summer of 1773, ‘. 88. He joined the Cong. church at New Milford, Aug., 1720. He was captain of the train-band in the same town in 1732. In 1743, he was a signer of a memorial to the General Assembly, for liberty to establish a church in the south part of New Milford and the adjacent towns of Danbury and Newtown, the memorialists all living from four to seven miles from church. He built the house next south of Gallows Hill, about six or seven miles below the centre of New Milford, on the road to Danbury, and there lived and died. His remains sleep in the old burying ground, nearly opposite his house. By his will, dated April 2, 1759, and proved Sept. 7, 1773, he gives his property to his wife Sarah; son Thomas; the heirs of son John deceased; son Nathan; the heirs of his dau. Sarah deceased; daughters Rachel, Mercy, and Hannah. To Rachel, in addition to the eighth part of his estate, he gives his "Negro man Robbin," after the decease of his wife.

"He m. (1) HANNAH PICKET, per. dau. of Thomas and Abigail (Seymour) Picket, and if so, b. May 20, 1680. She d. March 1, 1716.

"He m. (2) ABIGAIL BUCK, per. b. in Wethersfield, Conn., Jan., 1692, dau. of Ezekiel and Rachel Buck. She joined the Cong. church at New Milford, Aug., 1720.

"He m. (3) March 23, 1733, Mrs. SARAH SLAUGHTER of Ridgefield, Conn., b. abt. 1690, dau. of (???) Drake. She d. Dec. 30, 1792, ‘. 102.

"CHILDREN BY FIRST MARRIAGE.
Thomas, b. Jan. 16, 1712; m. Mary Curtis.
Child, | b. ; d. Dec., 1715.
Child, | b. ; d. Dec., 1715.

"CHILDREN BY SECOND MARRIAGE.
John, b. Sept. 21, 1717
Grace, b. Jan. 22, 1719
William, b. March 2, 1720
Abia, b. May 19, 1721
Nathan, b. Feb. 4, 1722
Sarah, bapt. Aug., 1724
Mercy, bapt. June 29, 1729
Hannah, bapt. July 5, 1730