AIDS
sharethat's Jenny. The story is supposed to be on Forrest and Jenny so the sisters are immaterial.
share
I always assumed it was AIDS, but according to the book, it was Hepatitis C.
EDIT: director said it was AIDS although it wasn't specifically named. Either way, doesn't matter - deadly disease caused by lifestyle choices.
I came looking for this question. They mention them briefly, but you never see them. I assumed they were older, but there's nothing that proves one way or the other. I can't imagine they were THAT much older if they were, though, and assume they had to split them up when they removed her (them?) from her father's house, due to the size of Grandma's house or something. But still, you'd think later on when she was all messed up that maybe she could have considered that they were people she could turn to, because they, especially, could understand her issues.
Were they at the wedding? The funeral? People have that theory that Forrest isn't really the father, but if he really wasn't, she easily could've given little Forrest to one of her sisters, right? This in and of itself, should prove that he is the father, because, even though it seemed she had written him off, she obviously wanted little Forrest with his father over other family.
Anyway, probably overthinking it, but hey, why not?
I always thought that Jenny was the youngest.
Maybe, as with real cases, the older ones dashed off out and got married, so they would get away from the revolting pedo?
People have that theory that Forrest isn't really the father...