how to restore my iPhoto library
When I updated from Mojave to Catalina I didn't open my new Photos app for awhile. When I did, it seems all my photos that were in my iPhoto library are not there. I realize that the app changed from 32 to 64 bit, but I thought it would have kept my photos. So, my questions...
Is there a way to restore my photo library?
I have a Time Machine back up disc that goes back to before I changed OS. Can I get them from there somehow?
Any other good advice on this?
iMac 21.5″, macOS 10.15