Intelligence Report on Nsungli Area of Bamenda Division, Cameroon Province (1935) by F. W. Carpenter, Assistant District Officer Añadir al portapapeles
Intelligence Report on Nsukwa Native Court Area ( Comprising the Village Groups of Ashama, Adonta, Aba, Ewuru, Egbudu, Akan, Ijemma-Unor, Ijemma-Aniogo, Ishiago, Nsukwa and Ukwu) Asaba Division, Benin Province (1935) by F. M. Woodhouse, Assistant District Officer Añadir al portapapeles
Intelligence Report on Ogoni Tribe, Opobo Division, Calabar Province (1932) by E. J. Gibbon's, Cadet Añadir al portapapeles
Intelligence Report on Ogula Clan of Western Ijaw Sub- Tribe, Forcados District, Warri Province (1930) by R. J. Hook, D. F. C., District Officer Añadir al portapapeles
Intelligence Report on Ogwashi- Uku Clan of Asaba Division, Benin Province (1936) by J. E. Hill, Assistant District Officer Añadir al portapapeles
Intelligence Report on Ohafia Clan of Bende Division, Owerri Province (1933) by C. J. Mayne, Assistant District Officer Añadir al portapapeles
Intelligence Report on Ohodo, Ozalla, Lejja, Ede, Opi and Akwegbe Villages of Nsukka Division, Onitsha Province (1934) by J. Barmby, Assistant District Officer Añadir al portapapeles
Intelligence Report on Okpanku, Abboh, Uduma and Mpu Groups of Awgu Division, Onitsha Province (1934) by O. P. Gunning, Assistant District Officer Añadir al portapapeles
Intelligence Report on Oku Clan, Uyi District, Calabar Province (1932) by S. L. Knight, Assistant District Officer Añadir al portapapeles
Intelligence Report on Olomoro Village Group, Ghose Clan, Ase District, Warri Province (1931) by E. R. Chadwick, Assistant District Officer Añadir al portapapeles