Mo. Rev. Stat. § 274.120: Officers elected by directors.

The directors shall elect from their number a president and one or more vice presidents. They shall also elect a secretary and a treasurer, who need not be directors or members of the association; and they may combine the two latter offices and designate the combined office as secretary-treasurer; or unite both functions and titles in one person. The bylaws may provide for the election of the president and vice president by the members, or their delegates, at annual meetings.