Joseph Edumondson of Butler Co Pa

In the 1850 census in Franklin Township, Butler Co there is a Joseph Edmundson age 35 and sons Calab 15, John 13.
In the 1860 census He is married to Albina Watt age 30, she had to be a second wife, and they have children Nancy, Joseph II and Everett ages 8,3,1. In the 1870 census Albina is living in Connoquennessing Township,Butler Co, with Rebecca and Joseph
and unreadable name ages 19,14,4 . Are these any of your family? Need to know what happened to children Nancy,Everett and who was the unreadable childs name.. Also know that Albina diedMarch 8th 1882 but where is she buried? Thanks