PHOTOQUEST: The Tonery Sisters of Ellenville NY

I recently received a copy of this photo with the central two women identified as the Coughlin sisters of Lackawack, Anna and Eunice. It is thought the photo was taken about 1910. The others are identified as Agnes Tonery and Mary. I am wondering if they could be the Tonery sisters of Ellenville NY ... and if so, which is which?

The relative who has the photo thought that "Mary" was also a Coughlin, but Anna and Eunice had no sisters, no sister-in-laws named Mary, and no known cousins.

Agnes Tonery was born in 1886 and her sister Mary in 1878.  It appears that they always lived in Ulster County (Ellenville and Napanoch). Mary married Lewis Westbrook in the mid-1930s and Agnes, unmarried, was living with them in the 1940 census.

If you can identify either or both the women standing with Anna, please let me know. Thanks!