Clementine DeBar Booth (1810–1874), sister of Ben DeBar, was the mother of Blanche Booth (1844–1930), who was the daughter of Junius Brutus Booth Jr., and the niece of John Wilkes Booth, the assassin of Abraham Lincoln. Junius and Clementine divorced when Blanche was a child, and Ben DeBar adopted her. Following the assassination of Abraham Lincoln, The DeBar house in St. Louis was thoroughly searched. Ben DeBar was known in St. Louis as a Southern sympathizer ("At the outbreak of the war he was several times admonished by the Provost Marshals for pandering to rebel tastes on the stage of his Theater"), but the investigation into the assassination concluded that as the war was drawing to a close, he had modified his sympathies to protect his pecuniary interests. Blanche was an actress, using her mother's (and adopted father's) name, Blanche DeBar.
