Seat Upholestery Question

This might seem like a dumb question,but here's the scoop.Dad bought a 69 Dart in December. We're getting ready to order new seat covers,etc. for it. Pulled the interior out today and found a buildsheet in the rear bench seatback. Decoded it here (Thanks FABO!), and if the sheet matches the seats, then front and rear benches came out of a 71 Dart.

NOW, what I need to know is, if I order new seat covers for a 69 Dart, will they physically fit the 71 seats? Would I be better off ordering for a 71 instead?

Thanks for any/all help. Dad's finally back into the hobby, so anything I can do to help him along, I'll do. After all, it's because all his "war" stories over the years, that I love these little A-bodies myself!