The commission shall establish, and maintain at such lawful depository or depositories as it shall select, a “Cahaba Trace Fund” composed of the money or moneys which may come into its hands from admission, inspection fees, gifts, donations, grants, bequests, loans, bond issues, governmental appropriations or other sources, either public or private. Such funds shall be used by the commission to pay for the purposes herein set forth, and the servicing, retirement or amortization of any bonds or other evidences of indebtness issued by the commission.