Missouri Revised Statutes
Chapter 471 - Uniform Simultaneous Death Law
Section 471.060 - Law does not apply if decedent provides otherwise.

Effective - 28 Aug 1959
471.060. Law does not apply if decedent provides otherwise. — This law shall not apply in the case of wills, living trusts, deeds or contracts of insurance or any other situation where provision is made for distribution of property different from the provisions of this law, or where provision is made for a presumption as to survivorship which results in a distribution of property different from that here provided.
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(L. 1947 V. I p. 13 § 6, A.L. 1959 S.B. 120)