File talk:Portrait of Mary Ann Casey, wife of Anderson Ruffin Abbott (1863).jpg
There is clearly an error here.
Mary Ann Casey is noted in the Anderson Ruffin Abbott page as being 18 years old at the time of her marriage in 1871.
That would mean that the elderly lady in this photograph is really about 10 years old (picture dated as 1863).
Can anyone accurately date this photo?
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