Dated Cambridge, 30 Nov., 1864. To Joseph J. Mickley, responding to a request for genealogical information on Robert E. Lee. "I regret that I cannot give you any satisfactory information.....I have supposed him to be a descendant of Gen. Henry Lee, an officer of the revolution, but in this I may be mistaken." Sparks was not mistaken. One sheet, folded to make four pp., one is used. Mounting stains on p. 4, folded as though for mailing, else Fine.