Maryland Naturalization Abstracts, Volume 1,Baltimore County and Baltimore City 1784-1851,
by Robert A. Oszakiewski, 1995.
Passenger Arrivals at the Port of Baltimore 1820-1834, from customs Passenger Lists. Michael
H. Tepper (Ed.),Elizabeth P. Bentley (transc.) 1982, data on 50,000 immigrants about 75% were
German, the rest Bristish and Irish.