The date of SG's birth (in Ireland
, it was said)
is unknown. Even if she began publishing at an early age, she must probably have been born by about 1770.
By October 1825
SG published what seems to be her last novel, Parents and Wives; or, Inconsistency and Mistakes
, with her name and an extensive listing of previous titles.
SG's date of death has not been discovered; it was probably after the appearance of her last known publication in 1825.