Johnson, J. & J.. 1803-1811. Frederick Co., Md.. iron furnace (or owner) --

Access_id	38512 (1)
Rediscov_id	18848 (1)
Name	Johnson, J. & J. (1)
Active date	1803-1811 (21)
Location	Frederick Co., Md. (251)
Trade	iron furnace (or owner) -- (262)