[1][3] Her siblings included brother William Barnes Jr., a newspaper publisher and leader of New York's Republican Party.

[9] The couple's punctilious insistence on the term 'photogram' in these titles, at least until 1906 when they bowed to common usage, was a result of their conviction that the etymology of 'photography' demanded that the word 'photograph' was the verb, and that the product of the act of photography was the photogram, just as one 'telegraphs' a 'telegram'.

[10] She also illustrated several books by her husband with photographs she had taken, including Shakespeare's Town and Times (1896), The Canterbury Pilgrimages (1904), and The Real Dickens Land (1904).

[7][11][12] Throughout her career, Barnes spoke in support to women in photography, insisting that their work should be judged according to the same criteria as those applied to men.

Archives of her work are held by the George Eastman Museum in Rochester, New York, and by the Kent Archaeological Society in Maidstone, England.