Okla. Stat. tit. 8 § 15
Annual meeting of members. The annual meeting of the members of such cemetery association shall be held each year as set by its board of directors or other applicable organization for the purpose of electing directors and transacting such other business as may come before the meeting. Notice of the meeting must be given by the secretary by publication in a newspaper published in the county and in the city or town nearest to the corporation's cemetery at least two (2) weeks and not more than four (4) weeks prior to the date of such meeting; five (5) members shall constitute a quorum; special meetings may be held upon like notice; provided that if the members number less than fifty then the notices may be given by mailing the same to the members directed to the nearest post office to the location of the cemetery.
Okla. Stat. tit. 8, § 15