MLA

Bartlett, Henrietta C. (Henrietta Collins), 1873-1963. Elizabethan Club, Yale University. Box 1, folder 64. 1913-58. https://collections.library.yale.edu/catalog/32582760.

APA, 6th edition

Bartlett, Henrietta C. (Henrietta Collins), 1873-1963. (["Box 1, folder 64"])(1913-58)[Elizabethan Club, Yale University]. https://collections.library.yale.edu/catalog/32582760.