As always, thank you for your quick reply and advice.
Just A couple of questions. Regarding WO100/79, if McInnes and Fraser quote the complete roll (Ashanti 1895-96), it essentially only lists Officers from the Hausas and not enlisted (native) men (apparently there were 100 from the Lagos Hausas and 643 from the Sierra Leone Hausas).
Also, I'm not quite sure what you mean by Ancestry? My knowledge of researching individual names is ordinary, and I wouldn't know where to start searching for WO100/79.