- Smith, G. Rex (Gerald Rex) (8)
- Afḍal al-ʿAbbās ibn ʿAlī, Sultan of Yemen, d. 1377 (1)
- Bidwell, Robin Leonard (1)
- Hamdānī, Muḥammad ibn Ḥātim, fl. 1295 (1)
- Healey, John F. (1)
- Serjeant, R. B. (Robert Bertram) (1)
- Trustees of the "E.J.W. Gibb Memorial" (1)
- Varisco, Daniel Martin (1)
- Ṭabarī, 838?-923 (1)