Subseries B. Naval Architecture Record Books provide specifications of Crowninshield's ships listed by design number. These design numbers correlate with the numbers used on the B. B. Crowninshield drawings currently in the custody of the Peabody Essex Museum's Maritime Department. The records often identify the shipbuilder, the name of the customer, and sometimes include notes on the performance of the vessel during its trial runs.

Subseries B. Naval Architecture Record Books provide specifications of Crowninshield's ships listed by design number. These design numbers correlate with the numbers used on the B. B. Crowninshield drawings currently in the custody of the Peabody Essex Museum's Maritime Department. The records often identify the shipbuilder, the name of the customer, and sometimes include notes on the performance of the vessel during its trial runs.