For the purposes of this article the term “trustee” shall mean any banking institution or trust company legally authorized and empowered by the State of California to act as trustee in the handling of trust funds or not less than three persons one of whom may be an employee of the funeral establishment; the word “trustor” shall mean any person who pays the money or deposits the securities used for those preneed arrangements; the term “beneficiary” shall be the person for whom the funeral services are arranged; the words “corpus of the trust” shall include all moneys paid and securities delivered by the trustor pursuant to the provisions of the article.