[curiousfab]

This is a mammoth task but an important one. I wonder if there's a way to collaborate with existing collections of historical Amateur radio data, such as the famous "QSL Collection" from Vienna: https://www.dokufunk.org/index.php?lang=EN

I think they have more material than probably anyone else in the world, but much of it is "offline" (partly digitized but not web accessible).

Another huge collection of historic QSL cards, bios of deceased radio amateurs and other stuff: http://hamgallery.com/