Joseph as well as all the other Hemenway's from Bradford county PA on findagrave.com are all related. Joseph was the youngest son of Thaddeus Hemenway. Joseph had no boys before 1830. Thaddeus' sons Levi, William and John also had families in Bradford county. After 1830 there are no records of the three. John is my ggggrandfather and I have his children's names from his daughter's bible. In the census of 1830 William and Levi together have 6 male and 3 female children. I really believe Alfred was one of them. It has just been impossible to prove it.
Do you have death dates or places for Alfred and Eunice?