Booth's father, Junius Brutus Booth, was named for Brutus, and Booth (as Mark Antony) and his brother Edwin (as Brutus) had performed in a production of Julius Caesar in New York City just six months before the assassination.
Boothov otec Junius Brutus Booth bol pomenovaný po Brutovi; a Booth (ako Marcus Antonius) a jeho (ako Brutus) vystupovali v predstavení Julius Caesar v New Yorku len 6 mesiacov pred vraždou.