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Dear Ms. Kiggins,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located 3 series Baltimore, Maryland Customs Records and Vessel Passenger Lists, 1820-1898; Transcripts of Passenger Arrival Lists, 10/1819-12/1832; and Indexes to Missing and Other Passenger Lists, 1820-1957; and 1 item  Baltimore Passenger List "EE5" - Bark Inca in the Records of the Customs Service (Record Group 39) that might be helpful. The records are not yet digitized and available in the Catalog. For access to and/or copies, please contact the National Archives at Washington - Textual Reference (RDT1) via email at firstname.lastname@example.org.
We also located another RG 36 series Inventory of Passenger Lists for the Port of Baltimore, 9/1820-2/1921 also not yet digitized in the Catalog. For access to and/or copies, please contact the National Archives at Philadelphia (RE-PA) via email at email@example.com.
We suggest that you review NARA’s website for how to Start Your Genealogy Research; U.S. Customs Records, 1820-ca.1891 for additional information about passenger vessels that arrived in Baltimore; and Census Resources for tips on how to access census records that may are digitized in the National Archives Catalog or available on our partners’ websites as well as how to view them for free at a NARA facility. NARA has census schedules on microfilm dating from 1790 to 1930 but data from recent censuses are not available after 1940 due to the 72-year restriction on access to the Census. Most researchers find it helpful to begin with the 1940 Census and work backwards to locate people in earlier generations.
If you use Ancestry to access Census, immigration, and other digitized records, there may be a fee for using Ancestry. However, you may view these records online at one of NARA's facilities for free via a NARA PC. For the nearest NARA location, please consult our web page at https://www.archives.gov/locations/. Also, some of the images from Ancestry are available for free on Family Search at https://www.familysearch.org/en/.
We hope this is helpful. Best of luck with your family research!