Mo. Rev. Stat. § 507.220
No person appointed guardian ad litem for an infant, for the purpose of defending a suit against such infant, shall be liable for the costs of such suit, unless specially charged by the order of the court for some personal misconduct in such cause.
(RSMo 1939 § 870, A.L. 1983 S.B. 44 & 45)
Prior revisions: 1929 § 719; 1919 § 1176; 1909 § 1750