Mike, I missed your listing of shade-tolerant roses on DG, but I'll do a search for it. I had bookmarked the one I saw from the Shady Gardens forum by BlissfulGarden back in 2008:
"I have several area of partial shade/dappled sun that are currently graced with roses. I can verify that the following varieties can stand up to our Louisiana heat and humidity as well as perform well in partial shade: New Dawn (climbing), Marie Pavie, Mlle Cecile Brunner (climbing), The Fairy, Sea Foam, Iceberg (climbing white), Burgundy Iceberg (newer variety), Autumn Splendor (miniature in large pot and EXCELLENT!!!), and Baby Katie (also miniature in large pot)."
I'd like to start with a few that I could get some recommendations on, and try them out. In the end it always comes down to trial and error. I like the look of the Cherry Parfait you recommended. My color palette tends towards the cool shades of lavender, pinks, whites and although Cherry Parfait looks more red than pink, I think it would add the right tone for a pop of color. I would start with the areas that are on the edge of the woodland (open towards the small clearing around the house). Although still shady, those areas do get partial sun at various times throughout the day. Is it too late in the season to plant any now? I'm such a novice, at first I thought OGR was a reference to "ogre" aka that the rose gets huge, but then I realized you meant Old Garden Roses
The OGRs really appeal to me in general, and so does the David Austin roses that have the OGR look.