Brauner notes that Carrington's mother was a member of the Illinois delegation at the Democratic National Convention in 1931 which nominated Franklin D. Roosevelt for President. In the United States, party conventions are only held in presidential election years. The convention in question took place in Chicago from June 27 to July 2, 1932.
After Player mentions that Carrington was a journalist during the Spanish Civil War, Carter and Downing simultaneously ask "For the Berliner Zeitung?" However, the Berliner Zeitung was founded on May 21, 1945, four years after the events of this episode.
The shadow of a boom mic visible during Grant and Carrington's conversation about escape plans.