She is hired by Scrooge McDuck to be his maid and his nephews' nanny. She also has a granddaughter named Webby. They live in Scrooge's mansion. She's often seen cooking the dinner, cleaning or scolding the boys when Scrooge is in his office.
She is motherly, rational, selfless, protective, benevolent, encouraging, accountable, kind-hearted, loving, educated, wise, bold, even-tempered, trusting, independent, nurturing, affectionate, big-hearted, empathetic, attentive, knowledgeable, lion-hearted, earnest and hard-working.