CLEMENS, SAMUEL ("Mark Twain"). Autograph letter signed ("S.L. Clemens") to Mrs. Anna Goodenough, regarding family news and the health of his eldest daughter. Guildford, 14 August [1896]. 3 pages, small 8vo, written on rectos and final verso; with postmarked envelope, addressed in Clemens's hand. "...To-day we are troubled a little by news that our eldest daughter is ill... Mrs. Clemens & Clara will sail tomorrow & I shall follow three days later..."