Worth checking out the Architecture Archives timeline, including lots of facts, timelines, and images of the building and rebuilding of Cooper.
If you haven't poked around the Cooper Archives website, it's worth a look. The Library's Facebook page is funny, too. On their libguides site, you can see an overview of what they've got catalogued, including a folder-by-folder breakdown (which is helpful to reference when making requests). Please email Katie if you've got any archives questions or requests, she's here to help us navigate these things! (firstname.lastname@example.org)