That was my thought. I have a couple friends who have mainly Sorrel dogs, so I'm used to typical black & tan markings with white, but I've never seen such an expression as the one above. And I'm just not seeing any Beagle influence. I suppose I'd believe the dog would have a greater chance of having Running Walker Hound or American Foxhound in its line, as those are two somewhat common breeds here, especially the former. But I dunno.
I inquired about her, and I'm just waiting to hear back.