Looks like I've fallen victim to a known danger of Google+. When I started my G+ account, all my Blogger photos (Blogger is owned by Google) were automatically displayed (not imported, as I and many other assumed). So when I deleted those albums, I permanently deleted all existing photos out of this blog.
You'd think Google would have learned their lesson about automatically grabbing stuff between properties when they had all that flack from the launch of Buzz. Apparently not.
I'm exploring options, but unfortunately I don't have a lot of local backups of blog photos in context, and I'm uncertain how I'll ever be able to figure out which photos belong where. Will try to piece it back together, but not sure how successful I will be.
Depression.
Update: Have a strategy for replacing from archives, but it is slow and tedious. Will take some time.
