Surnames: LEFEVRE, JACKSON, DUVALL, SLAYBACK, PROBASCO, BLUE. Jacob Lefevre settled Deerfield Twp. 1807. Other surnames were early settlers. And I have given names for them. Next generation moved to Shelby Co. Ohio. Turtle Creek TWp. 1800 to 1820: Elias Lefever. Possible neighbors and relatives include Dye, Blue. Does anyone have surnames of Turtle Creek Twp. 1800 to 1815? .