Evening Rose, Bear - Sounds like you had a good time in Georgetown. Was there quite a few years ago but recall it being quite a picturesque little town. Glad to hear you’re looking at turn-of-the-century homes and that you have some experience in dealing local building styles and quirks. Good luck on your quest for a new domicile.
Digging a real foundation into the limestone here is a futile exercise ... concrete slabs crack here, too, and is that ever a pricey enterprise!