This foot note contained in document PJA13dg1
3. This is probably the pastel or crayon portrait done by Isaak Schmidt during the period between April and July 1783, following JQA’s return to the Netherlands from St. Petersburg. For a description of this portrait, which is now in the National Portrait Gallery, and a reproduction, see
Cite web page as: Founding Families: Digital Editions of the Papers of the Winthrops and the Adamses, ed.C. James Taylor. Boston: Massachusetts Historical Society, 2007.