Frederick County was created in 1748 from parts of Prince George’s County and Baltimore County. In 1776, Frederick County was divided into three parts. The westernmost portion became Washington County, named after George Washington, the easternmost portion became Montgomery County, named after another Revolutionary War general, Richard Montgomery. The central portion remained Frederick County. In 1837 a part of Frederick County was combined with a part of Baltimore County to form Carroll County.
Early Families of Frederick County, MD
Families from Zion Lutheran, Middletown, MD to Ebenezer Lutheran, Indianapolis
Marylanders to Ohio and Indiana
Frederick County, MD US GEN WEB
Cemeteries of Frederick County
Maryland Tombstone Inscription Project
Frederick County Genealogical Society
Frederick County Historical Society
Frederick County Historical Society ARCHIVES & RESEARCH CENTER CATALOG
Maryland State Archives
Frederick County, MD Courthouse
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