Thanks for the links, ladies!! And I'd love a blue suit for the green hair, Angie. That would be PERFECT.
Hobbs is brand new to me - definitely, Jules, a nicely nicely done modern version. Much better than my wacky Internet pics.
JC Penney's I searched online for - but within local parameters. I will try again.
Dillard's, which I used to go to in Arizona, doesn't exist here, nor does Belk's...
...clearly, this is a thing that will have to be sought online, unless I rally to find a seamstress (smart tip, Ginger, re a retro/vintage familiar seamstress; I'll remember that)....and will use 'dress set' to search (had not thought of that one!).
Last but not least: I am hoarding three half slips, one which was my mother's from the 60s...or possibly 50s! I have had that experience of sales associates looking at me blankly on the subject and showing me shapewear instead...shudders!