No, the pictures are individuals and are not 100% identifiable. They have notations on the reverse, but copies over the years have different identifications" on the reverse. The "brothers" also look younger. While definately worth including in my Tree, I do make a notation regarding the "multiple identifications".
As to George Nation, b. 1832, it would seem that he settled in Salt Lake City, UT and died 30 Mar 1896, as per
https://familysearch.org/pal:/MM9.1.1/F85Z-N7F. (Let me know if the link works. I'm still trying to navigate around Rootschat.) Mother Isabel, father George. "Best part, he has the surname of
Reeves! So, presumably, this would fit with his LDS affiliation.
It will take awhile to run down these leads, but they all seem to point in the right direction. If it's not "them", then they have a bunch of twins named Reeves!
As far as Isaac goes, he was on his second marriage in 1875 when he married Susan E. Dowling. It is possible 1st wife Anna Maria was one in the same with Ann, Anna of Hannah, as per your earlier lead. Speculative, but not impossible. He is buried in Greenwood Cemetery, Brooklyn, NY, with his first & second wives, (plot cards & cemetery records did not provide any info other than the fact that he was married previously lost his 1st wife Dec 1874. No maiden name or next of kin listed.) Only "found his grave last year, and it wasn't too far from where I grew up. His daughter is in the same cemetery, all unmarked graves. Sad, but at least they've been "found".
I also found a Tree for Isabella Daw on FamilySearch (archives.com).
I'm going to keep "running" all of them until I sort this out!
This is very much appreciated.