From the History of Washington County, Pennsylvania:
"Demas Lindley with his family came in 1773 to settle west of the Monongahela, in the section of country which afterwards became Washington County, and with him came about twenty other families, all from New Jersey, and nearly all from the county of Morris, which had been Mr. Lindley's home before his emigration. Four of the families settled on the south fork of Ten-Mile Creek, near Jefferson, Greene Co. The others settled at different points on the north and middle forks of the same creek. Demas Lindley located upon four hundred acres of land situated on the middle fork of Ten-Mile, adjacent to the lands of Caleb and John Lindley, James Draper, and J. McVaugh. This property was warranted to him Feb. 5, 1785, and surveyed December 6th of the same year, receiving the title of "Mill Place," its location being very near the present village of Prosperity. Mr. Lindley became the owner of another tract of land called "Headquarters," which was warranted to him April 18, 1796, as containing three hundred and sixty-eight acres.
Demas Lindley and Jacob Cook were the two most prominent and influential men among the early settlers along Ten-Mile Creek. They were very active in the frontier movements against the Indians, and a fort was early established upon the property of Mr. Lindley, called Lindley's Fort, and was a rendezvous for the residents in this part of the country. Mr. Lindley build a grist- and merchant-mill on his property soon after his settlement here, and mills which are known as "Lindley's Mills" still occupy the same site. Both Mr. Lindley and Mr. Cook, mentioned above, had much to do with the organization and establishment of the Upper and Lower Ten-Mile Churches. Demas Lindley's sons located about him, and all owed their prosperous start in life to his influence and assistance. They were Zenas, Joseph, Abraham, Isaac, and Jacob."
Tombstone inscription reads:
" In memory of Demas Lindly who departed this life the 22 of January 1818 in the 85th year of his age and about the 60th year of his Eldership in the church. Blessed are the dead which die in the Lord from henceforth Yea saith the Spirit, that they may rest from their labours and their words do follow them."
Author's Note: Photo of Demas on this memorial added by Dennis Dodd is NOT a photo of this Demas Lindley, he would have been much older. The photo shown is from county history of Washington County, PA and is of Demas Lindley (1818-1902) son of Benjamin Lindley and Jerusha Cooper and grandson of Levi Lindley (brother of the Demas Lindley grave found here)
Joanna Prudden Lindley
1735–1808 (m. 1755)