Son of Abraham Lincoln, and secretary of war under Garfield and Arthur. ALS, one page, 4.5 x 7, personal letterhead, February 23, 1904. Belated letter to a collector. In part, “I am afraid I that I owe you an apology for not sending you this autograph before now. I wonder how you are going to treat it among your ‘famous Americans.’” In fine condition, with a bisecting horizontal mailing fold. R&R COA.