Banner, Preliminary plan for the second floor - The second floor included two rooms for the collections with the stairway in the right-hand corner. Banner charged Thomas $5.00 for the plans. Peter Banner, Plan. AAS Archives.

The Amerian Antiquarian Society, 1812-2012 - A View at the Bicentennial
The Lengthened Shadow of a Man - Isaiah Thomas and the Founding of the American Antiquarian Society, 1812-1831