1Thomas Jefferson to Nicholas Biddle, 20 August 1813 (Jefferson Papers)
In a letter from mr Paul Allen of Philadelphia , I was informed that other business had obliged you to turn over to him the publication of Gov r Lewis’s journal of his Western expedition; and he requested me to furnish him with any materials I could for writing a sketch of his life. I now inclose him such as I have been able to procure, to be used with any other information he may have...