I'm not disputing what you saw, just puzzled that we seem to be seeing two different things.
I wonder if the URL was changed or something? This is the one I'm looking at:
http://sites.utexas.edu/ransomcentermagazine/2018/01/18/deca...
I was pretty excited to browse the collection. But after 5 minutes I gave up. It's too frustrating.
The giant fixed header is a pain. And you cannot open the images in a new tab because they do not use normal links.
People would also completely forget the source, and the museum would get very little credit for the effort put into digitizing them. Sharing this data is not naturally profitable and can't be made profitable without some form of DRM, and a terrible interface is de facto DRM. This is a typical place where the state should intervene, where huge value for the many (the sum of small value for hundreds of millions of people) is sadly outweighed by infinitesimal costs to a few (the sum of the massive labor of half a dozen people.)