Hi Janis... I finally did find Martin's death certificate - from typhoid in Wisconsin in 1859. Interesting enough, I haven't been able to find daughter Catherine or Sarah that were in the 1850 census there nor have I been able to find Catherine in any 1860 census. I was hoping that in finding the census for Catherine Waddle in 1860, that all of her children would be listed with her because Isabelle is not listed on any of the census records and would most probably be on that one. Do you know the date of Hamilton's death or where he is buried?