"[3] Longfellow also translated Eugène Sue's A Romance of the West Indies from French (1898).
[8] In 1897, after being rejected for membership in the Washington Press Club,[9] O'Donoghue, Margaret Sullivan Burke, and Anna Sanborn Hamilton co-founded the National League of American Pen Women.
[10] She was the only woman elected to the executive committee of the International League of Press Clubs in 1898.
[8] She was a "prominent member" of the California State Association in Washington D. C. while her husband was serving as president of that organization in 1906.
[12] Marian Longfellow died in 1924, aged 74 years, in Shawmut, Tuolumne County, California, where she was living with her son Henry Wadsworth Morris.