COLLECTED BY
Organization: University of Chicago Library, Special Collections Research Center
Archive-It Partner 1056: University of Chicago Library, Special Collections Research Center
Archive-It Partner 1056: University of Chicago Library, Special Collections Research Center - Collection 13634: University of Chicago. Coronavirus Updates. Website
TIMESTAMPS
The Wayback Machine - https://web.archive.org/web/20210422190239/https://pixel.rubiconproject.com/