District of Columbia Land and Property
The District of Columbia was created in 1790 from Maryland and Virginia. Land records for the District of Columbia, 1792 to 1886, are on 694 microfilms, FHL Collection, starting with film #895251 for the index and Film #899401 for the records. The documents include deeds of transfer of title, bills of sale, mortgages, and manumissions. There is a grantor/grantee index for 1792 to 1919. The original records and indexes are located in the office of the Recorder of Deeds, 1101 4th Street, SW, 5th Floor, Washington, DC 20024, Telephone: 202-727-5374.
Deed books for Alexandria County, Virginia, are at the Alexandria City courthouse. Copies are at the Family History Library (1783-1865; indexed 1793-1870). The Family History Library also has the Maryland Circuit Court deeds for Prince George's County (1696-1884) and Montgomery County (1773-1868).
A list of the earliest settlers is in Bessie Wilmarth Gahn, Original Patentees of Land at Washington Prior to 1700 (1936 reprint; Baltimore: Genealogical Publ., 1969) FHL Collection, Book 975.3 R21g.