If this Isaac is the correct one...his first wife died(Riley) and he married my 3rd grt grand mother Elizabeth Hannah Piatt, in 1851, Indiana. Do a search in ancestery.com on my grd mothers name and my site should come up. It has notes and etc. I have both wives listed. There is a lot of info on these people as there are quite a few relatives that have the same info on their sites. Or go to the armfield surname lists at roots web or this program and do a search, you'll be pleased!