Who is Grandma Thelma Holland from She's Come Undone and what is their importance?

Thelma Holland is Dolores' grandmother. She lives in Easterly, Rhode Island. When Grandma's son, Eddie, drowned when he was a teenager she didn't cry in public..... insteadm she slammed pots and pans around her kitchen. When her daughter, Bernice, was killed, Grandma began to clean and remodel.

It took Dolores a long time to realize that Grandma used changes to deal with something no parent should have to deal with—the death of a child. Grandma claims to hate the tattoo artist who lives across the street, but when a snow storm hits, Grandma calls her to see if she's alright.