Claim: The Vassar College Observatory not only served as an educational and research facility wherein students are usually found using both the main telescope and any of the smaller instruments, but also as a home for Maria and her father during and after her tenure as professor.
Evidence: In addition to serving as an educational and research facility, the original observatory also served as a home for Maria and her father during and after her tenure as professor. Students could frequently be found using both the main telescope and any number of smaller instruments.