Two elderberries, one pot? (Cuttings propagation)

So is the Adam’s EldB just an American EldB, that has been grafted and propagated for its desired traits.

my wife bought some EldB from a gal online to make some tinctures, now she wants to get some shrub/trees.

I was looking at just buying seeds online, but the just have American (black), some red & blue ones, and Euro.
I don't really know. I do know I've had zero luck buying plain elderberry from Chief River and Musser Forests. I ordered like 12-24" bareroots, and I don't think they were 3" tall when I recieved them, they were fully leafed out, and dead.