 In 1879, Medley was elected Metropolitan of Canada (the bishop first-among-equals in the eastern half of all Canada), and held that position until his death.In 1879 he requested a coadjutor bishop to assist him with his duties.His request was granted and he nominated Tully Kingdon, who was consecrated in the role by Medley himself on 10 July 1881 in Fredericton.