Rebecca,
I have been tracking a John Nelson Vial(l) born in New York around 1826 and married a Margaret b 1830 in Ireland with children Martha b.1854 IA, Sarah b. 1858 IA, Walter (Scott) b. 1861, IA. My (poss.) ancestor was John Charles Stewart b. 1864 IA and in the 1880 Census there is a John Stewart living with Nelson Viall in Iowa, Jackson Co., IA who I believe is my John Charles. JC's mother had died in the 1870's and his father moved with JC's younger siblings to Nebraska. JC stayed behind and if this is him I was trying to determine if the Vialls were relatives as JC's mother was from NY. I would love to trade info.
John