Our line of Lindseys are also from Brown and Clarmont Counties. All I know is that Thompson Lindsey married Mary _____ and had a son, Thomas Jefferson b. 1839 m. 1859 to Margaret Jane Sidwell and d. 1863 at Cathage Tn. serving with the 89th Ohio. He is buried at Stones River Nat'l. Battlefield. Thompson is listed as a probate and guardian to a Michael Lindsey Ward in Clermont/Brown counties in 1811. There is also a Hezekiah Lindsey found in Cermont county at about the same time but I do not know the connection. Any connection to your family here?