Rock Hill is a city in St. Louis County, Missouri, United States. The population was 4,635 at the 2010 census. It is home to the Fairfax House on the National Register of Historic Places. Rock Hill is located at 38°36′33″N 90°22′1″W (38.609052, -90.367046).According to the United States Census Bureau, the city has a total area of 1.09 square miles (2.82 km2), all land.Rock Hill is bounded by cities Ladue, Brentwood, Webster Groves, Glendale and Warson Woods.James Collier Marshall settled what became Rock Hill around 1832. He and his brother John Marshall purchased 800 acres along Manchester Road where he and his brother built a log building that operated as a home and store.
In 1839 James built a two-story weatherboard home, naming it “Fairfax” after a family friend in Maryland, Albert Kirby Fairfax, Lord Fairfax of Cameron. A year later the property was divided between James and John Marshall when James married Elizabeth Kyle McCausland (she is related to The Robert Campbell Family of St Louis thru the Kyle’s). Fairfax was completed the following year. James and Elizabeth had five children who lived to maturity. A son, Ernest, the only to marry and have children, raised two sons. James Marshall sought to build a church and requested the services of the Presbyterian Church of St. Louis, which sent Rev Artemus Bullard to assist Marshall in 1845.
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