Kammala wannan jumla: Mohun ya kasance yana aiki da gwamnatin Amurka a wannan lokacin kuma daga baya aka tura shi a matsayin wakili zuwa Zanzibar. A wannan matsayin, an kira shi ya yi aiki a matsayin mai shiga tsakani tsakanin mayakan a cikin
Yaƙin Anglo-Zanzibar. Bayan kammala aikinsa na shekaru uku, Mohun ya koma Kongo don neman ma'adanai, kuma daga baya ya yi aiki tare da hukumomin Belgium.