Mattaponi (John Bowie Jr. House)

St. Thomas' Church is an Episcopal church in a rural setting, located at Croom, Prince George's County, Maryland. It is one of four congregations that have constituted the parish of St. Thomas in the Episcopal Diocese of Washington, the others including the Church of the Atonement in Cheltenham, the Chapel of the Incarnation in Brandywine, and St. Simon's Mission also in Croom. The original church was constructed between 1742 and 1745, and is one of the earliest Episcopal churches in Southern Maryland. With the adjacent cemetery, St. Simon's Mission, and St. Simon's Cemetery, it forms part of the St. Thomas' Episcopal Parish Historic District.

St. Thomas' Episcopal Parish Historic District is a national historic district located at Croom, Prince George's County, Maryland. The district encompasses four contributing buildings and three contributing sites associated with St. Thomas' Church. The other contributing buildings are the Gothic Revival style St. Thomas' Church Rectory (1852-1853), Tenant/Sexton's House (c. 1890), and tobacco barn (c. 1905). The contributing sites are the St. Thomas' Episcopal Church Cemetery, St. Simon's Mission Chapel Site, and St. Simon's Cemetery. The African-American communicants of St. Thomas' Church formed St. Simon's Mission Chapel in the late-19th century and it operated on the property associated with the Croome Industrial and Agricultural School (Croom Settlement School), which operated from about 1902 to 1952.It was listed on the National Register of Historic Places in 2011.

The John W. Coffren House and Store are two historic buildings located at Croom in Prince George's County, Maryland. This assemblage is significant for their architecture, as well as their association with the commercial history of the area and with John W. Coffren, local merchant and landowner. The Coffren House, built in 1861, has a Greek Revival entrance and interior detail. The Coffren Store, constructed ca. 1853, is a utilitarian structure, designed for use as a one-room general store. The store closed in 1945. The significance of the house and store together is that they are an intact example of house and store complexes that served rural communities in the county during the 19th century. Their builder, John W. Coffren (1828-1874), who rose from ditch digger to wealthy merchant, served on the Vestry of St. Thomas Church in Croom and on the Prince George's County School Board, as well as owning much of the property in the Village of Croom.The complex was listed on the National Register of Historic Places in 1987.

Brookefield of the Berrys is a historic house located at Croom, Prince George's County, Maryland, United States. It is a 2+1⁄2-story frame house begun about 1810 in the Federal style, and completed in 1840, in the Greek Revival style. The house was finished in 1840 by John Thomas Berry, a prominent plantation family in southern Prince George's County. Berry and his descendants lived at Brookefield from 1840 until 1976. This 19th-century farmstead is well represented by the complex of outbuildings surrounding the house.Brookefield of the Berrys was listed on the National Register of Historic Places in 1987.

Croom is an unincorporated community and census-designated place in Southern Prince George's County, Maryland, United States. As of the 2020 census it had a population of 2,720. Croom largely consists of former tobacco farms and forests converted to Washington bedroom subdivisions such as nearby Marlton. The main (Jug Bay Natural Area) part of Patuxent River Park is in Croom.

Waverly is a historic home located at Croom in Prince George's County, Maryland. The house, constructed in 1855, is a 2+1⁄2-story, two-part Italianate-style frame house. The casing of the principal entrance is a combination of both the Greek Revival and Italianate styles. Also on the property are two of the original outbuildings, a meathouse and a washhouse.It was listed on the National Register of Historic Places in 1987.

Bellefields is a manor house located in Croom, Prince George's County, Maryland. It was constructed about 1720. It is a brick structure in Flemish bond with random glazed headers, and two stories over a high basement. The structure is rectangular, with gabled roof sections, paired interior end chimneys, a front center entrance, wide raised belt course above the first floor, flat arched openings, and flanking symmetrical single-story wings. It is in the Georgian style. It was the home of Patrick Sim, Scottish immigrant and of his son, Col. Joseph Sim, Maryland patriot.

The Sasscer Tobacco Barn is a historic tobacco barn in Brandywine, Maryland.

The Columbia Air Center was an airfield in Croom, Maryland from 1941 to 1958. It was started by African American pilots who were not permitted to use other airports, but was also open to whites. It had an all black staff, and a number of the trainers had served in World War II as Tuskegee Airmen. John R. Pinkett founded the airport in Croom, Maryland, in Prince George's County on leased land near the Patuxent River. It housed up to five runways, three hangars, ten planes, and an all-black chapter of the Civil Air Patrol. The airport was operated from 1941-1954 by John William Greene Jr, and also by Tuskegee Airmen, Herbert Jones Jr., who would later form International Air Association, the first African-American owned airline.In 1959, the property was purchased by the Maryland-National Capital Park and Planning Commission and became the first part of the Patuxent River Watershed Park.

Marlton is an unincorporated area and census-designated place (CDP) in Prince George's County, Maryland, United States. The population was 9,802 at the 2020 census. The Marlton housing development, at first briefly called "Brandywine Country", grew up along U.S. Route 301 in the 1970s, and is part of the greater Upper Marlboro community. Originally made up of only single-family homes, more recently townhouses have been added.

Frederick Douglass High School (FDHS), is an American public high school established in 1935 and located in the Croom census-designated place of unincorporated Prince George's County, Maryland, United States, with a mailing address of Upper Marlboro and near Upper Marlboro. It started as a segregated school for African American students, and c. 1964 it became integrated. Douglass is a part of the Prince George's County Public Schools system, and is named after the famous abolitionist, journalist, and orator, Frederick Douglass. It was preceded by Marlboro Colored High School (1923–1935).