Thornburgh, (Blackford &). 1805-1812. Frederick Co., Md.. iron furnace (or owner) --

Access_id	70190 (1)
Rediscov_id	34395 (1)
Marker	* (1410)
Name	Thornburgh, (Blackford &) (1)
Active date	1805-1812 (15)
Location	Frederick Co., Md. (251)
Trade	iron furnace (or owner) -- (262)