This is the place to post questions and discussions on usage and style. The members of the Wordwizard Clubhouse will also often be able to help you to formulate that difficult letter.
a. Every member's wallet was stolen from the locker room.
b. Each member's wallet was stolen from the locker room.
c. All members' wallets were stolen from the locker room.
Pretty much the same meaning, except for the possible suggestion that with b), the members were targeted individually by the thieves (as opposed to the theft being purely opportunistic).