Even if her first publications were somewhat precocious, MJY can hardly have been born later than 1775. FamilySearch
records the births of literally dozens of Mary Youngs in London during the quarter century before this, but no Mary Julia.
21 August 1787
MJY composed and dated a poem apparently unpublished until 1795, "The Natal Day. To a Westminster
Scholar, at Windsor
, during the Autumn Recess".
MJY for the first time included her anonymous novels in a list along with other novels and her name on the title-page of The Heir of Drumcondra; or, Family Pride
, her last known work.
It is not known when MJY died. Her last identified work appeared in May 1810, and in all probability she did not live long enough to publish another.