Mo. Rev. Stat. § 456.8-810: Record keeping and identification of trust property.

1. A trustee shall keep adequate records of the administration of the trust.

2. A trustee shall keep trust property separate from the trustee's own property.

3. Except as otherwise provided in subsection 4 of this section, 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.

4. If the trustee maintains records clearly indicating the respective interests, a trustee may invest as a whole the property of two or more separate trusts.