Historical Sites in Middlefield 1 Historical Sites in Middlefield Middlefield SearchAll (14)Home improvement (1)Police Stations (1)Libraries & Archives (2)Civic & Community Organizations (1)Historical Sites (1)Fitness & Recreation Centers (1)Warehouse Clubs & Supercenters (1)Event Venues & Spaces (1)Massage Therapy & Bodywork (1)Middlefield Center Historic District Historical Sites