History of Butler County Pennsylvania, 1895
Biographical Sketches, Chapter 72 (Pgs. 1035-1083)
SAMUEL FINDLEY, SR., was one of the pioneers of Clay township, Butler county, where he settled in 1798. He built his cabin in the midst of an unbroken forest and spent the remaining years of his life in making a home for himself and family. He was a native of Ireland, and immigrated to Westmoreland county, Pennsylvania, with his brother William, prior to the Revolution. His brother was a soldier in the Continental army, and after peace was established became one of the most distinguished legislators of the State. He was a member of the first Constitutional Convention of Pennsylvania, and was elected to Congress in 1790, as a Jeffersonian Democrat, and served in that body for twenty years. He wrote a treatise on the funding of the public debt, also a history of the Whiskey Insurrection in Pennsylvania, in 1794, which he assisted in quelling, and other political pamphlets. He died in Westmorland [sic] county, in April, 1829. Samuel FINDLEY, Sr., had three sons and three daughters who came with him to Butler county, and afterward became well known settlers. The sons were Samuel, Robert and David. The daughters were Mrs. Elizabeth THOMPSON, Mrs. Mary CHRISTY and Mrs. Martha MILFORD. Samuel became a prominent minister in the United Presbyterian church, his field of labor for many years being in eastern Ohio, where he died in the latter part of the sixties. Robert and David patented lands in Clay township, a portion of which yet remains in the Findley name. They spent their lives in Clay township, and both died in the year 1843. Samuel FINDLEY, Sr. was commissioned by Governor MCKEAN one of the associate judges of Butler county, July 4, 1803, and served on the bench until his death, in 1816.
I believe the Elizabeth Thompson in the biographical sketch may be the mother of your Samuel Findley Thompson (1809-1865). She was married to John Thompson.
Hope this helps.
Ann Morley Carmel