Hi Myra and welcome!
First you have to complete your membership so that you can add family members. Please add the tag 'greeters' to your question, and that will help get someone to guide you through the process.
Bessie has some children on her profile. Is one of them your grandparent? You might have to create profiles for your parents, and possibly a grandparent, and then you can connect the grandparent to Bessie as Bessie's child.
I hope that makes sense! Finish getting signed up, and you'll be connected to Bessie in no time.