The house was begun in 1801 by Henri Josef Stier and his wife Marie Louise Peeters on almost of land north of Bladensburg. Stier first commissioned
Benjamin Henry Latrobe to do design work, but could not wait for Latrobe's late response. The local builder-architect William Lovering carried out the design work to Stier's direction, while Latrobe's rejected design was eventually used at Clifton, in
Richmond, Virginia. The east wing was completed first, and the Stiers occupied it in August 1802. The elder Stiers returned to Belgium in June 1803, however, and Rosalie and George Calvert took up residence at Riversdale, bringing with them a large number of enslaved people. Plans for the grounds were developed by landscape architect
William Russell Birch in 1805, although much of his plan was unrealized. The west wing was completed in 1806, completing the full five-part ensemble, one of the last of its kind. For thirteen years Riversdale housed the Peeters/Stier collection of European paintings, which was unique in the United States at that time. That collection included more than 63 paintings by such artists as
Peter Paul Rubens,
Anthony van Dyck,
Jan Brueghel the Elder and
Titian. Most of the larger pieces were kept in storage, and in 1816 they were returned. Before they were packed,
Rembrandt Peale persuaded Rosalie Calvert to display them for two weeks at Riversdale in April 1816. Rosalie became the owner of Riversdale in the same year, but died in 1821. George Calvert continued to live there until his death in 1838. The estate was divided between his sons George Henry and Charles Benedict Calvert. Charles Benedict lived his whole life at Riversdale, pursuing agricultural studies. His unique octagonal "cow-house" was particularly notable, but it burned in 1910. In July 1845, the homestead was highlighted in the first issue of the monthly publicaiton,
The American Farmer. Charles Benedict died in 1864. The property was then divided between his widow Charlotte and five children, with Charlotte in the mansion. The core of the property was eventually sold to John Fox and Alexander Lutz of New York in 1887. Fox and Lutz acquired an adjacent property that belonged to George Henry Calvert and began to develop it as the town of Riverdale Park. The new town offered convenient transportation into Washington on the
B&O railroad line that ran through the property. The mansion was preserved in a park, but was eventually used as a boarding house. Thomas H. Pickford bought the house in 1912 and undertook renovations, making significant alterations to the wings and moving some of the original mantels to his house in New York. From 1917 to 1929 the house was occupied by California
U.S. Senator Hiram Johnson. The sale of Riversdale in 1926 to Senator
Thaddeus H. Caraway of
Arkansas, was a consternation to Johnson, whose lease ran until 1929. Johnson moved out in the spring of 1929, the Caraways moved in. The Caraways undertook other renovations but Thaddeus died in November 1931. His widow,
Hattie Wyatt Caraway, took over his seat and was twice elected but was unable to meet the mortgage. A foreclosure sale ensued, and in 1932, Thomas H. Pickford purchased the property, selling the following year to former Oregon congressman
Abraham Walter Lafferty. Lafferty lived at Riversdale from 1933 to 1949, attempting to buy the parcel to the south of the mansion from Hattie Caraway. Mrs. Caraway, however, sold the parcel to a developer in 1947, who drained the small lake and built houses. Lafferty sold Riversdale in 1949 to the
Maryland-National Capital Park and Planning Commission for its
Prince George's County regional office. The offices remained there until 1982, when structural concerns caused the offices to be moved to other quarters. Restoration ensued, and the house opened to the public in 1993. ==Description==