Series II: Literary Productions, ca. 1919-1979; n.d.
Manuscripts, ca. 1921-ca.1966; n.d., Edwin Mortimer Standing
Standing, Edwin Mortimer, "Box 09, Folder 12 - "The Montessori Directress: A Suggested Symposium in the Form of a Questionnaire Circulated to Experienced Directresses" (E.M.S.)" (2022). Manuscripts, ca. 1921-ca.1966; n.d., Edwin Mortimer Standing. 63.