No assignment of a school land lease as security shall be valid unless filed for record in the office of the Commissioners of the Land Office within thirty (30) days after execution of the assignment. The Land Office shall charge a fee set by the Commissioners of the Land Office for entering and recording each assignment. No assignments of the lease which is the home of the family shall be valid unless executed by both husband and wife.
Okla. Stat. tit. 64, § 1058