Update: Closure on Jessie and Emily

SPOILERS AHEAD.
 In Toy Story 5, we've lost one fan theory and gained another. 
As you might remember, Jessie, the cowgirl doll, and apparently Woody's sister, has had a crippling fear of enclosed spaces and being abandoned ever since Emily, the little girl she originally belonged to, left her in a cardboard box to be donated to charity  when she outgrew playing with dolls. While anyone who’s seen Toy Story 2 probably remembers how traumatized Jessie was about being abandoned by her best friend after spending years forgotten under the bed, but this movie offered some much-needed closure for us as well as Jessie. 
After Bonnie, the little girl Andy donated his old toys to when he went off to college, lost Jessie and her horse, Bullseye, they ended up at Emily’s childhood home since the people who found her had read the address written on Jessie in case she’d been misplaced.
 It turns out that while Emily did give Jessie away, she never entirely forgotten the memories and how much she’d meant to her. The toys discovered a carving featuring Jessie’s name in the tree where she and Emily spent their summers playing together and found a time capsule.

No, it wasn’t full of Emily’s childhood trinkets, they found something much better. A birthday card containing a picture of an adult Emily playing with her own daughter on the tire swing, which revealed that Emily hadn’t forgotten about Jessie, she’d even named her own daughter in tribute of her favorite toy.  

See? Other people like this idea too!

The theory we lost was the popular one that Emily grew up to be Andy’s mother. But now that we’ve seen that they look nothing alike, it’s been disproven. 
But doesn’t Emily’s daughter look a lot like Andy’s mom? That would mean that Andy is Emily’s grandson. The timeframe fits, and we’ve never actually heard Andy’s mother addressed by name.