I learned to sail on Rhodes 19 keelboats, and also day sailed with a friend who had a Mariner (I think it was called) ... In any case, it was the cuddy cabin centerboard version of the Rhodes 19. Spent many great hours sailing off Chicago years back, and enjoyed both. Solidly built, pretty roomy cockpit (especially on the keel version), and that lovely, graceful Rhodes shear that's just so sweet to look at.
I used to live in Cheyenne. Where do you plan to sail, Seminoe and Pathfinder?