1. Thomas Putnam: Abigail's uncle, who is part of the group accusing others of witchcraft and uses these accusations to his advantage in land disputes.
2. Mercy Lewis: A young girl and Abigail's cousin or niece in some interpretations of the play. Mercy follows Abigail in accusing others of witchcraft but eventually starts to feel remorse towards their actions.
These family connections illustrate Abigail's ties within the community of Salem while showcasing the power plays and interpersonal conflicts between different groups and individuals during the Salem witch trials.