The singer Carol Dukes shares many biographical details with Josephine Baker, the expatriate American chanteuse who worked with the French Resistance during the occupation of Paris.
Although Kumasa refers to Kinch as "Ivan Kinchloe" and that is considered a goof as Kinch had been identified previously as "James Kinchloe." By coincidence there was an actual test pilot named Iven Carl "Kinch" Kincheloe, Jr. Kincheloe was a Korean War veteran and test pilot who was killed in 1958, and for whom an award honoring excellence in test flying is named.
Colonel Hogan (Bob Crane) while "channeling the spirit of an American from the last century" and "talking" with the spirit of Otto Von Bismarck, refers to Adolf Hitler as a "paper hanger" and a poor one at that. Paper hanger is a slang term for someone who applies wallpaper for a living. In association with Adolf Hitler, who reportedly apprenticed at the trade, it is a pejorative term implying someone who does manual labor and lacks the intellect to govern appropriately.
General Hammerschlag's name can be translated into English as "hammer blow".
This episode references channeling the spirit of "Otto von Bismarck". He was the first Chancellor of the German Empire between 1871 and 1890.