(c.1817–50), author of Awful Disclosures (1836), an account of her supposed life as a nun in Montreal, filled with horror tales of misconduct in the Catholic convents. Since there was a strong anti-Catholic feeling at the time, Maria won as many converts as enemies. Investigating committees proved her tales to be false, but the slanderous controversies she had precipitated were still hot enough to ensure the popularity of her Further Disclosures (1837). After this period of notoriety, she faded from the limelight.
From The Oxford Companion to American Literature in Oxford Reference.