This is a picture of the school class at the Roberts' mill camp school, probably 1914-15 or 1915-16 (as I know my
grandfather was there then). The young man in the center of the middle row, with the bow tie, is my grandfather,
Elliott Roberts. He would have been about 10 at the time (born 1904). 

There is also a partial list of the people in the photo on the back of the photo, in my grandfather's handwriting
(probably done much later from memory) that doesn't appear to be in order by row or whatever, as follows: 
Mr. Price (clearly the teacher) Francis Driscoll Marion Ball Vilas Ball Evren (sp.?) Ball Lizzie Somerville
Lillian R. Ned Beaudon (no surnames given for the last 3).