Category:Built in Maryland in 1847
- States of the United States
- Alabama
- Arkansas
- California
- Connecticut
- Delaware
- Hawaii
- Illinois
- Indiana
- Iowa
- Kentucky
- Louisiana
- Maryland
- Massachusetts
- Michigan
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- Mississippi
- Missouri
- New Jersey
- New York
- North Carolina
- Ohio
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- Wisconsin
- District of Columbia
- Washington, D.C.
- Insular areas
- Minor Outlying Islands
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Subcategories
This category has the following 3 subcategories, out of 3 total.