Okla. Stat. tit. 15, § 16
Persons of unsound mind within the meaning of this chapter are incapacitated persons or partially incapacitated persons, as such terms are defined by Section 1-111 of Title 30 of the Oklahoma Statutes.
R.L. 1910, § 882; Amended by Laws 1998, HB 3213, c. 246, § 4, eff. November 1, 1998 (superseded document available).