I believe that this family group belongs to my Smith family line. I think that E. B. Smith is Edward B. Smith and his wife, Minerva. I'm not sure who the "E. A. Smith" is. I know that they had a son by the name of Charles Lyman Smith (a.k.a. "Grizzley"). According to work another cousin (Joyce) has done on this family, they did have other children, but none with these initials (could it be a grandchild?)...but perhaps the other children were grown and gone by this time.
This family group is not my direct line, but Edward's sister, Sarah Smith, is my ancestor.
THis family (E. B. Smith) is living in Elkton, Douglas County, OR, in the 1880 Census. Living in the next household (or maybe it's 2 households over?), are Edward's parents: C. W. M. Smith (Charles Willet Masterson Smith) and his wife, Pelina (they are my 3rd great-grandparents). Also living in nearby households (and related to each other) are Robert Haney and family, George W. Benedict and family, and the Huddleston family, among others.