I would contact Wyoming Armory in Cody Wyoming. Some of the employees with Ballard still work there and might be able to help you. As for barrel manufacture, most were marked on the bottom of the barrel under the forearm. D would designate Douglas and so on. If they are of some help, noting here might help others seeking information. I have heard conflicting reports on the Ballard rifle company after the purchase and move to Michigan. You might try to contact them there.st of luck in your quest.  Krag

Snuffy, If you can backtrail the rifle to the original purchaser they may have a copy of the order form/build sheet. A lot of information will be on that sheet. 
Under the forearm should be stamped ser.# and an initial. D= Douglas, B=Badger (most common), K=Kieger, 7C= made in house. There are surely some other brands as some supplied a blank and others would specify a specific maker/caliber/twist.

Snuffy, when you go to take the forearm off, be careful that after you remove the screw, that you slide it forward before pulling it off the barrel. There are two pins coming out of the receiver that go into the forearm and they can be tight. You don't want to crack the forearm by lifting straight up.