You are not entitled to a copy of this if your brother is still living. If he is deceased, are you unaware of who he may have named to be his trustee? If you are named as beneficiary in the trust, the trustee will soon be contacting you--it takes a little while, perhaps a few weeks or a month, to manage the affairs of the trust. Check at the county courthouse, in the meantime, to see if anyone has filed anything to open up his probate estate, if there is one (although there may not be a probated estate if he put all of his assets into the trust, and trusts are handled outside of court).