Na amanyokuo NPP no akandifo no ne Simon Diedong Dombo, Omanhne a ɔwɔ Duori a ɛwɔ Atifi Mantam mu. Wɔhyehyɛɛ amanyɔkuo no wɔ afe 1954 mu na amanyɔkuo no kɔpree wɔ abtoɔ a ɛkɔɔ so wɔ afe 1954 ne 1956 abatoɔ a ɛkɔɔ so no mu. Wɔ November afe 1957 mu no, wɔne ne amnyɔkuo afofofro a wonni aban mu kaa wɔn ho boomu hyehyɛɛ amanyɔkuo foforo a ɛde United Party de tiaa amanyɔkuo a ɛde Conventions People’s Party.