The first clue is the name "Ellingham" across the top rear of the photo. Charlotte married John Ellingham in 1896 in Brooklyn. In the 1900 census, she is listed as the wife of John Ellingham living at 426 Herkimer Street, Brooklyn, NY.
The second clue is c/o Ms. Wilson 872 Herkimer Street. If I look at
Charlotte's mother, Julia Biot, in the 1900 census. Mrs. Mary Wilson is her neighbor
as she lives at 883.
So based on this, I've come to the conclusion that this is Charlotte Biot Ellingham in her 20's.
What do you think?
UPDATE: Aunt El confirmed this is Charlotte Biot Ellingham, Cenie's mother. Thanks Aunt El!

