From Jonathan Shipley
AL: University of Pennsylvania Library
5. Our guess about the year is based on the slender clue of squirrels. DF had sent some as pets; they arrived in January, and by August were great favorites in the Shipley and Spencer households. BF to DF above, Jan. 28, Aug. 22. We are conjecturing that the gift was the reason for the Shipleys’ and Spencers’ call.
6. For the Spencers see the August letter just cited.