Within 30 days after the appointment of the original commission members, the commission shall meet on the call of any member and shall elect one of its members as chairman and another as vice-chairman, each to serve for a term of one year or until his successor is elected and qualified. The commission shall employ a secretary and treasurer, who may or may not be a member of the commission, and, if not a commission member, fix his compensation and duties. All officers shall be eligible for reelection. Each commission member, before entering on the performance of his public duties, shall take and subscribe the oath or affirmation specified in Article II, Section 7 of the Constitution of Virginia. Such oath may be administered by any person authorized to administer oaths under § 49-4.