- Frederick County (Va.) Birth Records,
1865-19171
- Frederick County (Va.) Business Records,
1791-19261
- Frederick County (Va.) Coroners' Inquisitions,
1779-19271
- Frederick County (Va.) Court Record,
18541
- Frederick County (Va.) Declarations for Revolutionary War Pensions,
1820-18351
- Frederick County (Va.) Judgments (Freedom Suits),
1798-18591
- Frederick County (Va.) List of Registered Voters,
1902-19031
- Frederick County (Va.) Loyalty Oaths,
1865-18661
- Frederick County (Va.) Military and Pension Records,
1805-1907; undated1
- Frederick County (Va.) Minute Books,
1761-18581
- Frederick County (Va.) Muster Roll in the War with Germany,
1917-1922 (bulk 1917-1918)1
- Frederick County (Va.) Naturalization Records,
1834-18561
- Frederick County (Va.) Organization Records,
1909, undated1
- Frederick County (Va.) School Records, 1800-1925 (bulk 1819-1925)1