Hilary mentions she's never heard of an Italian Indian when meeting Mr. Greyhawk for the first time. This comment could be a nod to Iron Eyes Cody (born Espera Oscar de Corti), an American born of Sicilian/Italian parents, who portrayed Native Americans on screen beginning in the 1920s up until his death in 1999. In many regards he was the most recognized "American Indian" in the USA by the 1970s thanks to the anti littering campaign (Keep America Beautiful) he was featured in.