Family Fun at First Church's Fall Fair. First Church & Parish of Dedham. 670 High Street (Corner of High & Court Streets). Dedham. 10:00 a.m. to 2:00 p.m. There will be fun for all ages at First Church's Fall Fair on the Common. Pumpkins, apples, moonwalk, face painting, raffles, games & more. Pony rides from 12:00 p.m. to 2:00 p.m. Stay for lunch or bring home some delicious soup & baked goods! All proceeds benefit the First Church & Parish of Dedham and its programs. In case of rain, activities will be moved to the Parish House.