Glad you found it.
A little late for this, but I was going to add that often Lodge sells the square pan as part of their "Festival" package. I've got a couple of their square skillets and you and your MIL are right--they're wonderful to use.
I've never been to the lodge outlet in Sevierville, but have been to the great one at their factory in So. Pittsburg. Heartily recommend a stop there, if you're anywhere near the area. Great prices--for both first and second quality. I've bought a number of their 'seconds' at dirt cheap prices. And really, what does it matter if there's a little 'nubbin' on the outside or the edge isn't quite even? Cast iron will last several lifetimes, even with slight imperfections.