Tree-ring Dated Buildings in Maryland

Row House, Baltimore Anderson House, Thurmont Antietam National Battlefield
Bayly House, Cambridge Best Farm, Frederick Co Bethesda House, Ellicott City
Bostwick Hall, Bladensburg Bowman House, Frederick Bush Tavern
Bussard Farm Kitchen Cloverfields, Wye Mills Compton Bassett, Upper Marlboro
Concord Plantation, Prince George's Co Cooke's Range At Pope Farm, Derwood Doughoregan Manor
Evergreen Barn Forgeman's House, Thurmont Friendship Farm, Frederick
Friendship House, La Plata Fugate House, Monkton, Handsell, Dorchester Co
Hawkins Pharsalia Hess House, Keedysville The Beatty-Cramer House, Frederick
Huckleberry Hall, Leitersburg, Jacob Leiter House, Leitersburg, Joseph Fiery House Place, Clear Spring
Josiah Henson Site, Montgomery Co Keedy House and Cottage, Boonsboro Linchester Mill, Preston, Caroline Co
Lisbon Hotel, Lisbon Little Bennett Regional Park, Clarksburg Lyons Creek Boat Wreck, Calvert County
Melwood Park, Prince George's Co Middlekauf Farm, Kelly’s Purchase, Sharpsburg Mount Lubentia, Upper Marlboro
Roberts Inn, Cooksville Red House, Wye Plantation, Easton Rich Hill, Bel Alton
Addition to Rosses Chance, 5606 Ross Neck Road, Cambridge, Snively Farm, Keedysville, Sotterley Mansion, Hollywood, St Mary’s Co
Stagg Hall, Port Tobacco Stubbs Barn, Wheaton Summer House, Montpelier Mansion, Laurel
The Wilderness, Trappe Thomas Farm House, Frederick Co William Still Cabin, Caroline Co
Williams' Conquest, Kingston Woodlawn Manor Log Cabin, Sandy Spring

As new building are dated they will be added to this list. If there is a building you are looking for that is not on the list please contact me at michael





The Oxford Tree-Ring Laboratory provides cutting-edge commercial dendrochronological services to homeowners, architectural historians, and cultural resource managers. READ MORE

Contact Information

Oxford Tree-Ring Laboratory

Michael Worthington
Jane Seiter, Ph.D

25 E. Montgomery St.
Baltimore, MD 21230


Introduction to the Laboratory

This is how we sample your building,  READ MORE

Basic Dendrochronology

The Laboratory's staff have been involved in scientific dating of over two hundred historic building both in the USA and UK. Detailed listing of all of them can be found READ MORE

Sampling Procedures

After two years of investigation of what was a planned rental property, the oldest dated house in North Carolina has been identified in Edenton.
Preservationists with the N.C. Historic Preservation Office, architectural historians with the Architectural Research Department at Colonial Williamsburg and local historians participated in the research. READ MORE

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For more than thirty years, the architectural research department at Colonial Williamsburg has engaged in comprehensive study of early buildings, landscapes, and social history in the Chesapeake region. READ MORE