At the first meeting of the Planning Commission in the year 1966 after the Mayor has appointed citizen members to the Commission, as provided by this Charter, and at the first meeting of such Commission in each year thereafter, the members of said Commission shall elect a Chairman and Secretary by a majority vote of the members of said Commission and the Chairman and Secretary so elected shall serve at the pleasure of the Commission and until successors are elected by said Commission. The Chairman of the Planning Commission shall be a member of said Commission, but in no event shall the Chairman of the Commission, in his dual capacity as Commission member and presiding officer of the Commission, cast more than one vote on any action. The Secretary may be elected from within or without the Commission's membership and may hold other employment with the City. The Secretary shall keep an accurate journal of the proceedings and actions of the Planning Commission.