Who were the old people at the end of the book Fried Green Tomatoes who gave the jar of honey to the little girl?

Throughout Fannie Flagg's novel Fried Green Tomatoes at the Whistle Stop Cafe, Idgie Threadgood is described as a bee charmer. These hints lead the reader to believe the older woman at the end of the book is Idgie.
In chapter 26, Idgie wakes up Ruth to take her on an impromptu picnic. While enjoying the day, Idgie shows Ruth her bee charming talents as she walks up to a beehive to get fresh honey for her friend. The scene is important in the development of their relationship: Idgie wants to do something nice for Ruth, but Ruth bursts into tears at the thought that Idgie may be hurt or killed. The event is a bonding experience for the pair and leads to the development of their relationship.

You're just a bee charmer, Idgie Threadgoode. That's what you are, a bee charmer.

At the end of the book, Evelyn goes to visit Ninny's grave. She wants her to know how much happier her life has been and to thank her. During her visit, she sees a note on Ruth's grave from a "bee charmer," letting the reader know that Idgie is still alive and well. This leads us to believe that the old woman at the end of the book is Idgie, still charming bees and selling fresh honey to travelers.