Yep! Just card stock. For some reason having a white backing behind the image causes worse scans when the bright light can penetrate the image you're scanning and gets reflected internally off that white sheet. I always just put a thin piece of black cardstock on top of everything I scanned.
https://epson.com/For-Work/Scanners/Photo-and-Graphics/Epson...
It has a white panel on the inside of the lid which ruins a lot of scans. I always put black card on top of my scans.
That's probably the best scanner for photos. And I used to own a $25K Hasselblad too.
Make sure you clean the platten and the photos before scanning to save hassle later on dust removal.
I used those Epsons for scanning tens of thousands of old photos.
Start with a good scan, and there is so much good post-processing software out there now to help correct fading etc on old images.