They're not grafted, just old shrub roses that have been there probably almost as long as the house.
But they're pretty, so I like them.
I decided to go ahead and try moving one of them - actually it's two plants on one sucker, but there was only one set of real roots between them so I left them connected. I also found a new spreading piece coming off another bush nearby so I pulled that as well and stuck it in the ground. We'll see what happens... yesterday and today we've had that nor'easter come through with lots of wind and a ton of rain, so I'm just hoping everything hasn't washed away!