Clarksville is an unincorporated community in Howard County, Maryland; the second highest-earning county in the United States according to the U.S. Census Bureau. The community is named for William Clark, a farmer who owned much of the land on which the community now lies and served as a postal stop that opened on the 4th of July 1851.
River Hill is the last and westernmost village to be developed in the town of Columbia, Maryland, United States, though some residents maintain addresses in Clarksville. The village is home to 6,520 residents in 2,096 housing units in 2014. The area was used as a game preserve by James Rouse to entertain clients and personal hunting during the buildout of the Columbia project. In 1976, County Executive Edward L. Cochran selected the 784-acre parcel owned by Howard Research and Development for an alternate location for a county landfill; a task force selected Alpha Ridge Landfill instead. Residential construction started in 1990. It is bounded by Maryland Route 108 and Maryland Route 32, and is centered on Trotter Road. The village is divided into two neighborhoods: Pheasant Ridge and Pointers Run, with about 6,500 residents.
Doughoregan Manor is a plantation house and estate located on Manor Lane west of Ellicott City, Maryland, United States. Established in the early 18th century as the seat of Maryland's prominent Carroll family, it was home to Charles Carroll, a signer of the United States Declaration of Independence, during the late 18th century. A portion of the estate, including the main house, was designated a National Historic Landmark on November 11, 1971. It remains in the Carroll family and is not open to the public.
Blandair, also known as Blandair Farm, Blandair Park, and Blandair Regional Park, is 300 acres of former slave plantation located in Columbia, Maryland. The Blandair Foundation estate of Mrs. Smith was purchased by Howard County, Maryland in the late 1990s and is in the process of being developed as a regional park.
Burleigh, or Burleigh Manor, or Hammonds Inheritance is a historic home located at Ellicott City, Howard County, Maryland, built on a 2,300-acre (930 ha) estate. Which included "Hammonds Inheritance" patented in 1796. It is a Federal-style brick dwelling built between 1797 and 1810, laid in Flemish bond. Based on the 1798 Tax assessment of the Elkridge Hundred, the original manor house started as a one story frame building 24 by 18 foot in size. Also on the landscaped grounds are a 1720 stone smokehouse; a much-altered log, stone, and frame "gatehouse" or "cottage," built in 1820 as a workhouse for slaves and another log outbuilding, as well as an early-20th century bathhouse, 1941 swimming pool, and tennis court. Portions of the estate once included the old Annapolis Road which served the property until the construction of Centennial Lane to connect Clarksville to Ellicott City in 1876. The manor was built by Colonel Rezin Hammond (1745–1809), using the same craftsmen as his brother Mathias Hammond's Hammond–Harwood House in Annapolis. Rezin and his brother Matthias were active in the colonial revolution with notable participation in the burning of the Peggy Stewart (ship). Hammond bequeathed the manor and 4,500 acres (1,800 ha) to his grandnephew Denton Hammond (1785–1813) and his wife Sara who lived there until her death in 1832. All slave labor were offered manumission upon Rezin Hammonds death in 1809, with extra provisions for tools, land and livestock for thirty two slaves. The estate was owned by Civil War veteran Colonel Mathias until his death where he was buried alongside other family members on the estate. His wife Clara Stockdale Hammond maintained ownership afterward. In 1914 the estate was owned by Mary Hanson Hammond with land totaling over 1,000 acres (400 ha) including the outbuildings and slave quarters. In 1935 the Estate was subdivided to 600 acres (240 ha) and purchased by Charles McAlpin Pyle, Grandson of industrialist David Hunter McAlpin. The manor house was renovated with the great kitchen replaced by a "Stirrup Room" where meetings of the Howard County Hunt Club were performed. The house was sold in 1941 to Mrs. Anthony J. Drexel Biddle, Jr. for use of Prince Alexandre Hohenlohoe of Poland during WWII. St. Timothy's School bought the property after the war in 1946, but abandoned plans and sold to Mrs G. Dudley Iverson IV in 1950. The brick was once painted yellow, but by 1956, had almost returned back to exposed red brick. As of 2013, it has operated as a livestock shelter.
Woodlawn, is a historic slave plantation located at Columbia, Howard County, Maryland. It is a two-story, stuccoed stone house built in 1840 with wood frame portions constructed about 1785. It was part of a 200-acre farm divided from larger parcels patented by the Dorsey family. The design reflects the transition between the Greek Revival and Italianate architecture styles. The home is associated with Henry Howard Owings, a prominent Howard County landowner and farmer, who also served as a judge of the Orphan's Court for Howard County. Owings purchased the property in 1858 and died at Woodlawn in 1869. The former tobacco farm produced corn, oats, hay, and pork. The majority of the property surrounding Woodland and its slave quarters were subdivided by 1966 and purchased by Howard Research and Development for the planned community development Columbia, Maryland, leaving only 5 acres surrounded by multiple lots intended for development of an Oakland Ridge industrial center and equestrian center. The summer kitchen, smokehouse, corn crib and stable built about 1830 have been replaced by a parking lot.
Montrose is a historic slave plantation located at Clarksville, Howard County, Maryland, United States. It was built in 1844 by Dr. William H. Hardey, prominent physician and secessionist in the American Civil War. One of Dr. Hardey's six children married John Randall, brother of James Ryder Randall, the author of "Maryland, My Maryland!" The house is basically a five-bay-wide, two-bay-deep, and 2+1⁄2-story stone structure with two dormers set into the gable roof on its south elevation and wide brick chimneys set into its east and west walls. A shingled 1+1⁄2-story cottage lies north of Montrose with barns and outbuildings lying northwest of them both.
Troy, also known as Troy Hill Farm, is a historic slave plantation home located at Elkridge, Howard County, Maryland, United States. It is associated with the prominent Dorsey family of Howard County, who also built Dorsey Hall.
Waverly Mansion is a historic home located at Marriottsville in Howard County, Maryland, USA. It was built circa 1756, and is a 2+1⁄2-story Federal style stone house, covered with stucco, with a hyphen and addition that date to circa 1811. Also on the property are a small 1+1⁄2-story stone overseer's cottage and a 2-story frame-and-stone barn, and the ruins of a log slave quarter.
Welling's Stone House or Clifton is a historic stone house situated between Clarksville, Maryland and Fulton, Maryland.
Hickory Ridge or White Hall is located in Highland in Howard County, Maryland, United States.
Roxbury Mill is a historic flour and grist mill located in Glenwood, Howard County, Maryland, now part of the Howard County Farm Museum.
Mount Joy is a historic slave plantation in Ellicott City, Howard County, Maryland, which has a current address of 9097 Executive Park Drive.
Sarah Jane Powell Log Cabin, is a historic home located at Cooksville, Howard County, Maryland, United States.
Bushy Park is a historic slave plantation located at Glenwood, Howard County, Maryland, United States. It is located on a 3,940 acre land patent named "Ridgley's Great Park".
Edgewood Farm is a historic farm located at Ellicott City next to Clarksville and Columbia, Howard County, Maryland, United States.
John Due House or Henry Warfield House, is a historic slave plantation located in Clarksville in Howard County, Maryland, United States.
River Hill Farm is a historic slave plantation located in Clarksville in Howard County, Maryland, United States. River Hill Farm resided on a land tract patented as "Four Brothers Portion". The house was built in the 18th century out of field stone with stucco covering. Outbuilding included a slave quarters. The 500 acre property was the home of Major Henry Owings of Owingsville.
Worthington's Range, "Howard's Chance", "Howard's Range", or "Tierney Gambrel Roof House", is a historic slave plantation located between Clarksville, Columbia and Simpsonville in Howard County, Maryland, United States.
Pfefferkorn House and Granary, or Lichendale is a historic slave plantation house located in West Friendship, Maryland near Glenelg, Maryland in Howard County, Maryland, United States.
