David Abel: A fountain fallen from grace. 141-year-old fixture to undergo repairs – with a hefty price tag. In: Boston.com. 12. Juni 2009, abgerufen am 31. Oktober 2011.
Horatio Rogers: Mary dyer of rhode island. the quaker martyr that was hanged on boston common, june 1, 1660. General Books, S.I. 2010, ISBN 978-0-217-01710-7, S.1–2 (Volltext in der Google-Buchsuche).