We invite you to share a message of congratulations and welcome with David Fithian and the Clark community. Here are 10 things your welcome letter or email to new members must include plus a template that can be customized for your organization.You are invited to celebrate the season with our Clark Public Schools Holiday Concert Series! A "thank you for joining" membership letter should include a personalized greeting to the new member. Use the member's first name in your salutation. We will grow, discuss, and build. A message from Dean Carol Stabile about her plans and optimism for the upcoming year. The PTO is comprised of parents and staff who are committed to working together to enrich the school life of each student. Current members who are updating their section details. 3. Membership coordinators looking to streamline onboarding. 4.