I think I may see the problem, but not the solution:
Users/blair/Pictures is where everything is stored. The folder I am trying to import is in Users/Blair/Pictures. I think this issue (and the "missing" photos) is being caused because Lightroom case-sensitive when looking for folders. How can I tell it where to look? Thanks
Edit: I recently switched to a newer computer, thus the discrepancy in the capitalization of my name.