Mo. Rev. Stat. § 169.700
169.700 Gifts accepted.
169.700. Gifts accepted. — Gifts, devises, bequests and legacies may be accepted by the board of trustees, to be held and invested and, except where specific direction for the use of a gift is made by a donor, used at its discretion for the benefit of the retirement system.
(L. 1965 p. 298 § 11)