The 1870 United States Census taken in the Town of Pelham reflects information about faculty, students, and workers who resided at the Priory School for Girls then conducted by sisters Anna and Adele Bolton in Bolton Priory which still stands at 7 Priory Lane, Pelham Manor, New York and is listed on the National Register of Historic Places. What can we learn about the Priory School for Girls from the census data? First, we must recognize the limitations of the data.