I have some information as to where Hutchinson was and where he died. I don't know much about Joseph Hoffman.
I got involved with the family when I discovered that a family member, James Gibson, had married Sofia Hoffman. She was Joseph's daughter and Hutchinson's second wife's sister (Lodema Hoffman).
Hutchinson was listed in James Gibson's probate record as taking care of him in his last illness. James was quite a bit older than Sophia. They had 2 daughters together. Sophia died giving birth to the second daughter. She survived and was given up for adoption. The first daughter Lillie, was only about 4 when her parents died (within 3 months of each other). Hutchinson and Lodema took her in. Lodema died in 1880 of consumption. Hutchinson had died in 1878.
I do have some census records on Hutchinson. Let me know what you need and I will see if I have the dates and places.