The only person who can change the LNAB (Last Name at Birth) is the profile manager, who is now Lawrence Bennett.
1 Under collaborations on the right hand side, click on "request to join trusted list" and indicate the reason why you want to join her list. (You're a family member, etc.)
2. Once he accepts you as a member of her trusted list, send him an e-mail to have you added as a profile manager.
3. After that, you can update the LNAB
Or alternatively, you could send him wiki e-mail asking him to change her LNAB to Ball and give him your supporting evidence.