Miscellaneous Pictures - Greggs Family

1. Are these two 'John's the same person?  The age of the photographs would be about right (I'm guessing 1880's on the first one, and the second one is definitely 1926).  But the guy doesn't necessarily look the same in both photo's (for example, the dimpled chin).

John W. Greggs - Sharon PA               John Greggs - Youngstown OH - Dec 13 1926
 

2. Where do the rest of these people fit in?

Aunt Stella Wilcox

Aunt Stella and Fay and Hollis Porter in sitting room on the farm

Note that this would seem to indicate that Stella Wilcox was on the Porter side of the family, since the Porters were one family removed from the Greggs (A Porter married a Fair, and then their daughter (Carrie Fair) married a Greggs).
 

Manerich Greggs and Mrs. Augustine and other

Unknown Greggs, Guillerey, or Porter.