Richard C. Sedoris/abt. 1818/ PA

I am looking for info on Richard C. Sedoris who was born abt. 1818 in PA. He married Sarah A. Robinson who was born in 1824 in Ohio. She died in 1894 in Meade COunty, KY. They had three children.
William E. Sedoris born 1849
George Bernard Sedoris born 1854
Franklin Pierce Sedoris born 1856. George and Franklin's descendants still live in Kentucky today. I descend from Franklin Pierce's line. It was told through family lore that Richard C. Sedoris went out west possibly towards Kansas and was killed by Highway Bandits. The last trace of Richard is where he appears in the 1870 Meade Co., KY census. Any help would be great.