I am scanning some old photo albums where 2 to 5 photos were previously glued to one sheet of paper. (removing would destroy the photo) They do not show well if I leave them on the page and scan them. I thought I could crop each photo after I run them through my scanner and make each into an individual photo. That worked fine, at least to a point. I can crop each of the photos and save the one I cropped, but if I crop another, I lose the one I just cropped. Is there to turn multiple photos pasted onto one page into individual photos?
Which application are you using, Lightroom Classic or the desktop version of the Lightroom cloud-based app? The principle is the same in both cases, but the mechanics are slightly different:
1. If using Classic, use the "Create Virtual Copy" option to create the correct number of virtual copies of the original scan, then you can crop each VC as appropriate so that you end up with the master original and xx VCs, each of the VCs being cropped to show just one of the photos. A VC has a "copy name" field as well, which you can use to allocate a unique name for each crop.
2. Lightroom "Cloudy" does not support VCs, though it does allow you to create real copies of an image. So create xx copies, crop as desired to leave you with the master original and xx cropped copies, then perhaps give each of the cropped copies a unique keyword as identification.