At least some content in this article is derived from information featured in Fantastic Beasts: The Crimes of Grindelwald. As such, spoilers will be present within the article.
In c. 1901 Irma Dugard was working for Corvus Lestrange. After the birth of his son, Corvus, the former sent the half-elf with his two children, the other being Leta Lestrange, to New York for them to be adopted by Mary Lou Barebone. On the trip however, frustrated with Corvus' constant screaming, Leta Lestrange exchanged her half-brother with another baby, who turned out to be Credence Barebone, saving the latter's life as the ship they were travelling on sunk during a storm.
- Dugard is likely derived from the French "du garde" which translates to "of the guard".
- Fantastic Beasts and Where to Find Them (film) (Indirectly mentioned only)
- Fantastic Beasts: The Crimes of Grindelwald (First appearance)
- Fantastic Beasts: The Crimes of Grindelwald - The Original Screenplay