East Contra Costa Historical SocietyPreserving the Past – Preparing for the Future Our History Become a BreakerLike to explore, tinker, and restore treasures from the past? Come help us bring history back to life. Our next project – Restore the Heidorn Water Wagon Learn More Revitalized Bier-Nail House Welcomes Visitors!Open Saturdays and third Sunday thru October 2:00 pm to 4:00 pm Plan a Visit Watch for ECCHS Fire Engine in the July 4th ParadeDowntown Brentwood Join our Research TeamThe Kathy Leighton Resource Center is open by appointment via website message. Learn More Join Donate Participate