The Fire Department shall consist of so many members as may be decided upon by the Mayor and City Council. The Fire Department may have any organization approved by the Mayor and City Council, and may hold meetings and engage in social activities with the approval of the Mayor and City Council. The Secretary of the Fire Department, if any is elected or appointed, shall keep a record of all meetings and shall make a report to the Mayor and City Council of all meetings and all activities of the Fire Department. No officer shall be elected or appointed within the organization of the Fire Department without the approval of the Mayor and City Council.