Indiana Jones Wiki

"Your sister was very little and she was never very strong."
Anna to Indiana Jones[src]

Susie Jones was Indiana Jones' sister. She died at a young age.

In China in March 1910, sick with typhoid fever and wondering if he was going to die, Indiana Jones told his mother that he hoped Susie was in Heaven with "grandma."

Years later, Susie posthumously became sister in law of both Deirdre Campbell Jones and Marion Ravenwood and aunt of Mutt Williams and her brother's daughter.