Summary: Grace Episcopal Church in St. Helena is celebrating its 150th anniversary by focusing on the people — the “saints” — who have shaped its past, present and future. Events include talks, services, a new historical book and a community festival, all aimed at honoring legacy while embracing growth and change. Despite broader church declines, Grace is seeing renewed vitality through intergenerational engagement, children’s programs, small groups and a growing permanent fund for long-term sustainability.…