Gym Membership Welcome Letter - Sample Letters Jul 20, 2012To, Barry Mathews. River Street, F block, 1 st house. London. 470234723044. 5 th May 2012. Subject: Welcoming you to our gym as a member. Dear Mr. Mathews. I, Peter Pettigrew, the founder of Harold Gold Gym, London would like to inform you that we have accepted your membership application for the batch of July to September package. Gym New Member Packet Ideas: Creating a Welcome Packet Welcome packets are a great way to help welcome new members, reduce questions & retain them for the long term. Get tips on creating your gym welcome packet! Welcome Letter. In this short note, you can thank your new members for joining and give a quick preview of what’s in store for them as a part of your studio family.