General Collection
- December 25, 2019
- January 1, 2020
- September 7
- November 26
- December 25
- January 1, 2021
Rare Book Collection & Image Collections and Fieldwork Archives
- December 24–31, 2019
- January 1, 2020
- January 20
- February 17
- May 25
- July 3
- September 7
- October 14
- November 12
- November 26–27
- December 24–31
- January 1, 2021