She is best known for her work with the children's room at the Westmount Public Library and her published book, Our Little Quebec Cousin (1919).
[1] She was cremated and interred in her family's plot in Greenwood Cemetery, St. Albans, Vermont.
[citation needed] Saxe was the first librarian hired to run the Westmount Public Library and served from 1900-1930.
[4] In 1914, Saxe also oversaw the project to create a Reference Room in the Westmount Public Library.
[3] In 1919, Mary Sollace Saxe wrote and published her most popular book, Our Little Quebec Cousin.
[3] Most notably, she implemented the open shelf system, which allowed patrons to browse the library collection and access books without having to request them.