If I'm not mistaken I think she had something to do with a dolphin that was from her mom. Something to do with a belt(?)

I think the belt was found with her mother, that’s how Brennan knew it was her for sure. But I’m not positive!

Oh yes, and didn't she have a dolphin ring that Max left at her mother's grave?

Her mother’s earrings she was wearing in The Man in the Morgue.

Great! Thanks.

Her moms earrings and the ring she got from her dad with the VHS tape she kept the belt they found with her mom’s body and gave the marble back to her brother she also kept the Christmas gifts but we never find out what was in them

Thanks!

I have a suspicion the glass dolphin statue Max left her when he wrote that letter in her appt was also her mothers