Looking for James UPTON

Today I was reading a newsletter from the Logan (Utah) Family History Center which mentioned posting our genealogical data online as well as posing questions about our ancestors. I decided to raise a question for a gentleman for whom I have given a bit of help over the years. He is looking for more information on James UPTON who was born about 1819 in Ireland. He married a woman named Sarah DESSIE. If anyone knows more specifics about James and Sarah, Peter would really be happy. Thanks.