Mississippi Code
Article 8 - Duties and Powers of Trustee
§ 91-8-810. Recordkeeping and identification of trust property

A trustee shall keep adequate records of the administration of the trust.
A trustee shall keep trust property separate from the trustee's own property.
Except as otherwise provided in subsection (d), a trustee shall cause the trust property to be designated so that the interest of the trust, to the extent feasible, appears in records maintained by a party other than a trustee or beneficiary.
If the trustee maintains records clearly indicating the respective interests, a trustee may invest as a whole the property of two (2) or more separate trusts.