[4] A year later, he left Kano for the Gold Coast, where he resumed his education at E. C. M. Senior School at Saltpond.
[4] He enrolled at Adisadel College, Cape Coast in 1936 but returned to Nigeria a year later to join his parents.
[4] In 1941, Coleman gained employment at the Nigerian Railways but left for the Gold Coast after a year of service.
[4] He later joined the Treasury as a second Decision Clerk prior to entering Achimota College to pursue an Intermediate bachelor's degree in engineering.
[4] He studied at the University of Southampton (where he obtained a diploma in Electronics),[1] the University of London (where he obtained his bachelor's degree in engineering),[5] and also had an attachment course with the British Broadcasting Corporation, and Messrs Marconi, a radio company then in the United Kingdom.