Can you show us a screen capture?
If you search for a photo in the Library module by file name, do you find the photo? (Here are the steps in the Library Module: in the Catalog Panel, click on All Photographs; then turn off Filters with Ctrl-L once or twice, then expand all stacks Photo->Stacking->Expand All Stacks; turn on the Filter Bar with View->Show Filter Bar, click on text, then set the dropdown menu to File Name and then enter one such Filename)
Okay I tried what you suggested: screen shot (could not get a shot that was clear enough, resized correctly where I could load it to this reply), followed your steps to find a photo in the folder I want (no go because apparently it is not in the list of photos in the Catalog panel).
So now what do I do?
Okay, here is the problem: I have some folders that I know are on my desktop. When I click on "Import", LR takes me to the next layer or screen, where I see the Files in their hard drives. I click on the hard drive that has my "stuff". I see the file for My Lightroom Photos. I click on it. When I go down to where the folders that are "missing" on the catalog on the Library page, I see them. If I go to where I want to import them to (on the right panel), they are there.
I just do not see them in the folders, under the Catalog section in the Library.
Maybe I misunderstood ... my mistake. However, please in the future do not use the word "file" when you really mean "folder".
You claim these folders are showing in the Import section, but not in the main Library page (I presume in the left hand side Folder Panel). Is that correct?
This means you have to import the photos in those folders into Lightroom and then the folders will show in the Library module Folder Panel.
How did I go wrong when I imported them into the catalog and then put them into a folder?
The folders that were not in your Library were never imported (or you chose Copy or Move instead of Add if you did import them)
That makes one feel really dumb! Thank you very much for your assistance.