Antioch

The Shannon-Williamson Ranch, is located in Antioch, California. The Williamson family settled in Antioch in 1867. They were granted a homestead in 1874 signed by then U.S. President Ulysses S. Grant. The original house burned down in 1895. The current house that stands is the one that was rebuilt after the fire. The ranch operated from 1875–1949. The ranch was saved in 1987 by the efforts of one of the inhabitants of the house Donald Williamson. The once 4,000-acre (1,600 ha) ranch raised crops such as wheat, barley, hay, and livestock. The ranch currently retains approximately 3 acres (1.2 ha) of the former ranch including a two-story Italianate house, 3 barns and several other buildings including outbuildings and a small orchard. The ranch is currently closed to the public and there are currently no plans for the future of the house and property. The surrounding area has been named after the ranch such as the housing subdivision and the shopping mall directly across the street from it. The ranch property has a fence that surrounds the entire property.

The Port Costa School served the community of Port Costa, California from 1911 until it was closed in 1966 due to consolidation. It served children from First to Sixth grades. For about 20 years, the district used the school as a warehouse for books, furniture and other surplus property. The building was purchased from the John Swett Unified School District in 1988 by the Port Costa Conservation Society (PCCS), an all-volunteer non-profit organization. It is currently being restored and used as a community center for Port Costa, California

Judsonville was a city in eastern Contra Costa County, California. It was located 3 miles (4.8 km) northeast of Stewartville, which is now a ghost town. It was a mining town for the nearby coal mines.

The Roswell Butler Hard House is a house located at 815 W. First St. in Antioch, California. Roswell Butler Hard, a prominent early resident of Antioch, built the house in 1869. Hard was the first chairman of the Antioch town council, which originally met in his house; he also served as county sheriff and supervisor. The two-story Italianate house was built entirely from brick made in the city. It was split into smaller housing units after Hart's death; in 1979, the city of Antioch took ownership of the building, and it has fallen into disuse since.

Empire is a former settlement in Contra Costa County, California. It was located on the Southern Pacific Railroad 1 mile (1.6 km) south of Antioch, at an elevation of 52 feet (16 m).

The Solano was a large railroad ferry, built as a sidewheel paddleboat that operated across the Carquinez Strait between Benicia and Port Costa in California.