Rona

Rona is Mamaw's friend. she only mentioned in The Birthweek Song. she has a granddaughter named Brenda  Mamaw ask Rona if she can hooked up with Robbie. She agreed and convince Brenda to go to Mamaw  's house to support him with tech support. Brenda is probably a tech savvy but unlikely a tech savvy.

Brenda (2010-present)
Brenda is Rona's Granddaughter. She is shy with people around her but, not. much

Trivia

 * Rona is Mamaw's Bestfriend.
 * It is unknown if she know Robbie.
 * Unlike what Mamaw was talking about  Brenda, she is just Robbie's aprentice.
 * It is unknown if she also know Cat.