Estelle Jackson was the mother of Sally Jackson, the wife of Jim Jackson and the mortal grandmother of Percy Jackson. [1]


Estelle Jackson and her husband, Jim Jackson, both died on a plane flight when it crashed down in a field 150 miles south of Lake Ontario at 3 A.M, leaving their young daughter, Sally, an orphan. Neither of them survived the crash and the cause of the crash was left unknown.

Her daughter, Sally Jackson, was orphaned and taken in by her husband's brother, Rich Jackson.

Percy Jackson and the Olympians

The Lightning Thief

Percy mentions her when talking about his mother’s backstory.

Magnus Chase and the Gods of Asgard

The Ship of the Dead

Percy mentions her when saying that his half-sister is named after their shared grandmother.


According to her obituary, Estelle was a kind woman who often helped out their neighbors.


Estelle is a female name originating from the southern region of France and surrounding countries known as Occitania. It means ''star''.

Jackson is a very common name of English and Scottish origin, coming from "Son of Jack" as many U.S political parties.



  1. Percy Jackson: The Ultimate Guide, Page 13