Philede Decr. i.e. Nov. 28. 1808
Permit me to present to you the Bearer Mr. Isaac Roberdeau—The Son of the late Colo. Danl. Roberdeau who was much distinguished here by his activity & patriotism at the commencement of the revolution—Mr. Roberdeau married a niece of our friend the late Dr Shippen Miss Blair of Germantown & has been long engaged in pursuits which must have given him experience in the line of his profession.
With the greatest esteem I beg leave to Subscribe Your obliged friend & Servt
C. Wistar Junre
DLC: Papers of Thomas Jefferson.