My gggrandfather, Christian Pierce ROUDEBUSH was married to Margaret Jane MARTIN in 1840 in Buffalo Township, Armstrong County, PA. They lived in PA until 1855-1858. We know this because the older children were born in PA and younger ones in Illinois. Margaret Jane MARTIN was born to James MARTIN and Catherine CORNMAN in Cumberland County, PA. I've found things about Margaret Jane MARTIN's line but ROUDEBUSH line has dried up. >From family Bible, he was born in PA and his parents were Christian and Elizabeth ROUDEBUSH. They had 6 children, all born in PA. The 3 girls married BOWSER boys. Family lore says Christian Pierce ROUDEBUSH worked driving oxen hauling pig iron between Pittsburgh and Baltimore. Once he drove oxen with a load to St Louis and saw the land in Schuyler County Illinois which he later homestead. Because of where Christian was Married pin-pointed a place he was at, I stared here. Any suggestions would be gladly excepted. Thank you for your time. Sara Hemp