Okay I just found a copy of Willi Geile's book on Recipients of the Knight's Cross of the House Order of Hohenzollern during the First World War. It lists the recipients alphabetically by year of their award 1915-1918. It also gives the date and rank at time of award. What it doesn't list is their first name which is rather frustrating. If anyone needs information from this book, please let me know. I am also looking for a book by the same author who lists the 1st Class Recipients of the Red Eagle Order during World War I.