Welcome to Frederick County, Maryland
A Proud part of the Genealogy Trails
Hello and welcome to the Genealogy Trails website
for Frederick County.
Our goal is to help you track your ancestors through time by transcribing genealogical and historical data and
placing it online for the free use of all researchers.
This website is in need of a dedicated host!
If you are interested in hosting this county website,
please view the Volunteer
Page for further
information and contact Nancy
This is a continuation of our original
Trails project and we are excited about this opportunity to
expand into other states. We welcome your feedback and comments, and of course, your data contributions.
We're looking for folks who share our dedication to putting
data online and are interested in helping this project grow.
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We regret that we have no time to perform personal research for you.
Frederick County was created in 1748 from parts of Prince George's County and Baltimore
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.
Frederick Town was laid out in 1745 and became the county seat of Frederick County three years later. It is uncertain
which Frederick the town was named for, but the likeliest candidates are Frederick Calvert, 6th Baron Baltimore
and Frederick Lewis, Prince of Wales.
Carroll County (east)
Howard County (southeast)
County, Pennsylvania (north)
Montgomery County (south)
Washington County (west)
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