Oxford Tree-Ring Laboratory - Maryland


Bethesda House

Bethesda House, Ellicott City, Howard County, Maryland (39.244705N; -76.829434W)


Primary House Felling Date: Winter 1827/8

Joists (4/9) 1827(C); Trimmer (0/1). Site Master 1738-1827 BETHx1 (t = 9.74 DC-AREA; 9.00 MD2011; 7.85 UTCx1).

Bethesda House is a multi-phase dwelling located near Ellicott City in Howard County, Maryland. The main house is composed of three sections: a one-room deep, three-bay wide stone building in the center of the range with a larger granite structure attached to the west and a modern addition with a mansard roof attached to the east. Dendrochronology has shown that the primary phase, the center section, was constructed in the winter of 1827/8 or very shortly thereafter.

Worthington, M J, and Seiter, I 2011 ‘Bethesda House, Ellicott City, Howard County, Maryland’, Oxford Tree-Ring Laboratory 2011/16




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Contact Information

Oxford Tree-Ring Laboratory

Michael Worthington
Jane Seiter, Ph.D

25 E. Montgomery St.
Baltimore, MD 21230




25 E Montgomery St.
Baltimore, MD 21230

410 929 1520