 Of the 82 awards made to servicemen whose last name starts with "O", seven were later awarded the Knight's Cross of the Iron Cross with Oak Leaves and four the Knight's Cross of the Iron Cross with Oak Leaves and Swords; seven presentations were made posthumously.Heer members received 52 of the medals, six went to the Kriegsmarine, 21 to the Luftwaffe, and three to the Waffen-SS.The sequential numbers greater than 843 for the Knight's Cross of the Iron Cross with Oak Leaves are unofficial and were assigned by the Association of Knight's Cross Recipients (AKCR) and are therefore denoted in parentheses.