Reclaiming Lost Horse Ownership Papers: A Guide

Question
I recently received a free horse from a man who was sending him to slaughter. The man has gotten rid of all his papers and copies of his papers. What do I need to do to start him over again on his papers. What papers do I need to get.  

Answer
Congratulations on winning the life of another horse intended for slaughter!  Horse lovers like us appreciate your generosity.
Curiously, why do you need his papers researched?  I have some ideas that might help but need to know your purpose in order to properly direct you.  Contact me further if you wish at my email address:  lora@dapple.net
Good luck, Lora Brown