The basis for the map was prepared by the missionary Jakob Erhardt from the reports of his companions Krapf and Rebmann,
Johann Jakob Erhardt recorded the repulse of a Maasai raid in 1853 at Mazinde by an allied army of Shambaa under Semboja, son of Kimweri ye Nyumbai, and of Wazigua, Parakuyo and "Arabs" (most likely Swahili).
On 10 June 1849 Jakob Erhardt and John Wagner arrived at the Rabbai Mpia mission station, where they joined Krapf and Rebmann.
Friedrich Gustav Jakob Henle | St. Jakob-Park | Jakob Böhme | Philipp Jakob Cretzschmar | Johann Jakob Engel | Jakob Michael Reinhold Lenz | Johann Jakob Reiske | Jakob von Uexküll | Jakob Nielsen (usability consultant) | Jakob Nielsen | Jakob Heine | Jakob Altaras | Emil Jakob Schindler | Johann Jakob Kaup | Jakob Steiner | Jakob Sporrenberg | Jakob Friedrich Fries | Jakob Erhardt | Jakob Bogdani | Hans Jakob Christoffel von Grimmelshausen | Carl Jakob Adolf Christian Gerhardt | Walter Jakob Gehring | Sankt Jakob in Defereggen | Rudolf Jakob Camerarius | Ron Erhardt | portrait of Jakob Muffel | Johann Jakob von Tschudi | Johann Jakob Moser | Johann Jakob Haid | Johann Jakob Bethmann |