Interesting. I am not sure if you know enough about the word khanum. It means miss, madam. lady. In those years there was no surname in Middle East. Everyone can me Khanum. It is not a name. However when you translate the text, it looks like a name. Same with Shoghi Effendi. Do you think Effendi is a name? No, it is given to none muslims under Turkic rule. So it sticks on you. Therefore, although it looks like a part of the name, it is actually just a common title. Anyway, i added some explanation of the wiktionary entry regarding the `madam` meaning.  What do you think about Madame Bovary? It looks like a name if you do not know what madame is, yet it is Mrs. Bovary. Khanum is like that.