Olga Crump

Olga Crump (née Miller (possibly)) is Muffy's great-aunt.

She gives Muffy the facts about the Crosswire family history saying that the Crosswires used to sell used horses, and then used carts, and now cars. Before she met her, Muffy fantasized her great-aunt as being a queen and herself as the long-lost Princess Anastasia of Translatvia.