Agnes Pitt is the sister of Cornelia, Agatha and Alice Pitt, and is one of the young aunts of Samantha Parkington, though their closeness in age means the three act more like cousins.
Agnes and Agatha are Cornelia's younger twin sisters and, while technically the young aunts of Samantha, are close enough in age that the girls relate to each other more like cousins. They have bright red hair and freckles.
They are lively identical twin girls who are full of new-fangled ideas, fun, and mischief. They tend to be a little rebellious, mischievous, independent, and break Grandmary's rules of proper behavior, and Samantha notes that they turn Grandmary's quiet house topsy-turvy. They are from New York City and know all of the latest trends in fashion, toys, and ideas. They are free spirits, impulsive, and happy-go lucky. Their ideas, while new, are not often practical, logical, helpful, and get them into trouble most of the time.
Agnes is scared about things in the wilderness like bugs, spiders, and fish in the countryside, though she's much braver in the city. Oftentimes the twins bicker between one another about ownership of ideas. They are often curious and always find themselves in places they shouldn't be. They have little respect for Eddie Ryland,.
The two were in the wedding as bridesmaids, where Samantha was first introduced to them in the short story Samantha Saves the Wedding chronologically. However, in book release order they are first introduced in Happy Birthday, Samantha!
