Roosevelt, Theodore (1858-1919), 26th President of the U.S. Letter to Mrs. Riis, the wife of T.R.’s ill friend and co-worker Jacob August Riis, regretting lack of time to visit before departure for South America. Typescript on The Outlook letterhead paper and signed in ink with ink annotation by recipient. 1 piece, leaf 25 x 20 cm. (writing on 1 page). With photocopy of seller’s description.