while reviewing many images from an entire day in Antarctica (files are set up by calendar day), I inadvertently deleted everything for one day. How can I get them back into Lightroom ? I found all the images in my PC desktop trash can folder & have saved them to my desktop proper.
1st - you shouldn't have had to retrieve them from the Trash. Where is your backup and backup to your backup. If the photos are important why is not making sure they are safe job one?
If you used the Trash to Restore (Windows) - Put Back (Mac) the files are back in their original location and should be linked to by the catalog. If the catalog doesn't link to them use Update Folder Location to relink them.