Mary Nestor Swift

Mary Nestor Swift is the wife of Tom Swift Sr. and the mother of Tom Jr. and Sandra "Sandy" Swift.

Mary was the high school sweetheart of Tom Swift Sr., the two having known each other since their teens. She is depicted as always being overly concerned for the safety of her husband and well being during their expeditions. She is also a skilled cook.

Mary Swift is the namesake of Nestria, a satellite moved into Earth's orbit by the Swift's space friends.