Locks and keys

So I have a new ignition switch and new trunk lock, lost the original set of keys a while back. So the door locks don't have a key therefore I can't lock the doors.

My question is what key was the same as the door lock key, was it the trunk key or ignition? I have I think both old locks and need to know which one to take to the locksmith!

Otherwise it's take the whole car in and have the locksmith "impression" the door lock, or worse take the door apart and remove the tumbler and go that route!

John B.