From brief online research, hopefully correct- corrections and additions requested:
The young woman in the photograph may have been Caro Maybelle Linwood Gray, born August 9, 1876 at West Sedgwick, Maine, daughter of John Mathers Gray and Lillian Idella (Gray) Gray. The 1910 Federal Census shows Caro teaching and living with her parents and siblings at Bangor, Maine. If she moved fast enough, she might have been the Maine native Caro Gray teaching and living at Manchester, Connecticut in 1910.
By 1920, Caro was teaching and living at Bristol, Connecticut, with her widowed mother and younger sister Elizabeth, also a teacher. It appears that Caro didn't marry. She died in 1960 and is buried in the Santa Barbara Cemetery at Santa Barbara, California in the same plot as her sister Elizabeth.
If you have corrections and/or additions, or if you recognize the young woman in the photograph as someone other than Caro Mabelle Linwood Gray, please leave a comment or contact me directly.
- Maine Birth Records, 1621-1922
- U.S. Federal Census
- California Death Index, 1940-1997