To make your member administration even more insightful and clearer you can divide your members in groups. Think of for example Boards, Commissions, year clubs, etc.

Groups are divided into folders and possibly sub-folders. In the example below the root-folder 'Commissions' is divided into five sub-folders. The sub-folder 'Conference' contains the conference-commission of 2013 till 2015. This way you can keep an overview of the yearly changing commissions and its members.