These are possibly Harriet and Margaret Roberts. My reasoning is that, in the photo, one woman appears to be about age 30, the other is younger, perhaps 5-10 years. So I looked in the 1891 census of Victoria Co., NB for a Harriet b. ca. 1879. Harriet Roberts (ca. 1877) was one in Perth Parish, and she had a sister, Margaret (ca. 1888); or about 10 years younger. They were children of Charles (ca. 1843) and Janes (ca. 1853) Roberts. Charles was b. in NB but his parent were from Quebec and he was Roman Catholic. This makes me think the surname is the French, Robert, not Roberts. Jane was b. NB as were her parents. Other children were Lucy A. (19), Emily (10), Harry (8), William (6), Elisabeth (5), Charles (4) and Theresa (1.)
In Perth Parish in 1901 they are still Roberts, so my theory about their surname may be incorrect. Harriet L. Roberts was b. 8APR1877 and Maggie A. Roberts was b. 25MAY1888.
Charles and Jane Roberts are still in Perth Parish in 1911, but neither Harriet nor Maggie are with them. Maggies birth record exists, but fails to state her given names. She was b. Perth 27MAY1888 (which is pretty good agreement with the 1901 census considering) and her parents were Charles and Jane (Cyr) Roberts. So, at least Jane is Acadian. A second birth record gives Maggie as Margaret Edith Roberts. Margaret (Margarette) married Victoria Co., NB 9JUN1909 James D. McLaughlin.
Charles and Jane Roberts died in 1912 and 1913. Their death records suggest both were b. in Madawaska Co.
I don't know if any of this seems familiar, but it is one possibility.