The story about Grand Duke Michael competing with Annie Oakley is true. Lowell Thomas talks about the incident in his autobiography, 'Good Evening, Everybody'.
This episode takes place in three different settings: Russia in 1917, London, England, UK in 1887 and Central Africa in 1913.
Buffalo Bill Cody is the only historical figure that Bogg and Jeffrey encounter at two stages of their life: as a 41-year-old in this episode and as a 14-year-old in Sneak Attack (1983).