Walton, 2010, p. 99 "[s]he would make her pitch and ask for a thousand dollars. A plant in the audience would volunteer the money. Next, recalled fellow organizer Hazel Hunkins, 'She'd say, 'Now the next thousand.' ...Before long she'd have $5,000, sometimes $10,000. Then we small-fry would go up and down the aisles to collect silver by the bushel. I never saw a woman bleed an audience as Mabel did."
Catherine M. Scholten, FIELD, Sara Bard, in Notable American Women: The Modern Period, 6th, Cambridge, Mass [u.a.], Belknap Press of Harvard Univ. Press, 1993, pp. 232-234, ISBN978-0-674-62733-8.
Kristina Gupta, Mabel Vernon (1883–1975), su nwhm.org, National Women's History Museum. URL consultato il 5 marzo 2013 (archiviato dall'url originale il 20 dicembre 2016).