David Walker (2011). “Walker's Appeal, in Four Articles: Together with a Preamble, to the Coloured Citizens of the World, but in Particular, and Very Expressly, to Those of the United States of America”, p.30, Univ of North Carolina Press
Maria Monk (1851). “The Character of a Convent: Displayed in the Awful Disclosures of Maria Monk ; Being a Narrative of Her Sufferings During a Residence of Five Years as a Novice and Two Years as a Black Nun in the Hotel Dieu Nunnery at Montreal ; to which is Added Confirmatory Notes and Affidavits Whereby Maria Monk's Disclosures are Most Fully Proved, and the Hideous Nature of the Conventual System are Exposed”, p.39