der Wart — the keeper, the warden. Duden: a person who is responsible for something specific or supervises it. The word comes from wahren, to keep or to guard. On its own it is old-fashioned. It lives on in compounds, and every German club has several of them.
der Kassenwart — the keeper of the cash box, the club treasurer
der Zeugwart — the keeper of the kit
der Platzwart — the keeper of the grounds
der Gerätewart — the keeper of the equipment
der Turnwart — the keeper of gymnastics, who organizes training and looks after the apparatus
der Jugendwart — the person in charge of the youth section
der Torwart — the keeper of the goal, the goalkeeper