Adelaide Washburn, "Helen Hamilton Gardener," in Edward T. James, Janet Wilson James, and Paul S. Boyer (eds.), Notable American Women, 1607–1950: A Biographical Dictionary, Volume 2. Cambridge, MA: Harvard University Press, 1974; pp. 11-13. نسخة محفوظة 17 ديسمبر 2019 على موقع واي باك مشين.
openlibrary.org
Virginia Blain; Isobel Grundy; Patricia Clements (1990), The Feminist Companion to Literature in English: Women Writers from the Middle Ages to the Present (بالإنجليزية), p. 409, OL:2727330W, QID:Q18328141
web.archive.org
Adelaide Washburn, "Helen Hamilton Gardener," in Edward T. James, Janet Wilson James, and Paul S. Boyer (eds.), Notable American Women, 1607–1950: A Biographical Dictionary, Volume 2. Cambridge, MA: Harvard University Press, 1974; pp. 11-13. نسخة محفوظة 17 ديسمبر 2019 على موقع واي باك مشين.
wikidata.org
Virginia Blain; Isobel Grundy; Patricia Clements (1990), The Feminist Companion to Literature in English: Women Writers from the Middle Ages to the Present (بالإنجليزية), p. 409, OL:2727330W, QID:Q18328141
Lina Mainiero; Langdon Lynne Faust (1979), American Women Writers: A Critical Reference Guide from Colonial Times to the Present (بالإنجليزية), QID:Q106787730