Circular titled ''Bill of Mortality for Portsmouth, New Hampshire, for A. D. 1801'' by Lyman Spalding, [1802], D04281. Missouri Historical Society Library and Research Center.

Circular titled ''Bill of Mortality for Portsmouth, New Hampshire, for A. D. 1801'' by Lyman Spalding, [1802], D04281. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/1087 Accessed September 19, 2024.