Sarah Mather was born in Brooklyn, New York. Details about her family and early life are scarce, but her later accomplishments suggest an inquisitive mind and a strong inclination towards innovation. The burgeoning industrial landscape of New York City at the time likely influenced her interest in technology and invention.

While specific details are unknown, it's clear that Sarah Mather developed a keen interest in maritime technology during this period. Living in a major port city like Brooklyn, she would have been exposed to the challenges and opportunities related to shipping, navigation, and underwater activities, likely sparking her inventive spirit.