Scottish missionary and explorer (1813–1873). After “disappearing” on an expedition to find the source of the Nile, Livingstone was found in 1871 by fellow explorer Henry M. Stanley, who made the famous query, “Dr. Livingstone, I presume?” Partial ALS signed “D. Livingston” [sic], one page trimmed in size to 7 x 9, no date [postmarked June 20, 1849]. The final page of a letter to Miss Marten in Plaistow, Essex, England. In part: “[…] We need your prayers more than any thing that the time spent may be poured upon their souls that their hearts may be inclined to the great salvation. We have two native teachers with us—very good & useful men. Paul is one of the first converts of the Kuruman…. Mebalse has always been my companion, a hard worker and an upright man. We commend them your prayers & sympathies. Will you present our united salutations to all your family & to Mrs. G— & the children of your school….” Another letter documenting the two “native teachers” Livingston mentions, Paul and Mebalse, is reprinted in the 1899 book The History of the London Missionary Society, 1795–1895 (London: Henry Frowde, 1899). The reverse of the sheet bears the address panel written in Livingston’s hand, including a notation dispatching the letter “Care of Revd. Wm. Philip, Cape Town.” In very good condition overall, with trimming as noted, intersecting folds (vertical fold to last name; small holes at intersections, not affecting text, wrinkling, a few small, faint stains (one touching a few letters of signature, and light show-through of ink. R&R COA.