Dear Mr. Bollinger,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located 10 series in the Records of the Bureau of Marine Inspection and Navigation (Record Group 41) that pertain to vessels and Baltimore during the 1850s and 1860s. For more about these records, please contact the National Archives at Washington, DC - Textual Reference (RDT1) at firstname.lastname@example.org.
Several of these series were microfilmed as National Archives Microfilm Publication No. M1873: Selected Vessel Documents Issued for Merchant Vessels at Baltimore, Maryland, 1789-1912 (11 rolls). Additional information is available on NARA’s web page titled Vessel Documents.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RDT1. We apologize for this inconvenience and appreciate your understanding and patience.
We also suggest that you contact the Historical Society of Maryland.
We hope this is helpful. Best of luck with your research!