We have a book titled Practical Arithmetic Comprising all the rules for Transacting Business in our collection. The book is written by Mary Williams for Mrs. Rowson’s Academy for Young Ladies. It is handwritten, and each page highlights not only mathematical rules but also different styles of calligraphy. We are not sure if it belonged to Jerusha; however, based on the dates noted in the book and the school's history, we became curious about the school and whether it might have been the school attended by Jerusha.

Rowson’s school was founded in 1797 by writer, actress, and educator Susanna Rowson (1762-1824) in Boston. It “offered academic training and refinements to the daughters of 'middling' class families” (Piaia). Young women were trained in academic subjects, music (including the pianoforte), art, and embroidery.