Adam Opel shares an identity with John Wilkes Booth who is credited with assasinating Abraham Lincoln. His wife Sophie Opel shares an identity with Mary Surrat who was also executed as a co-conspirator.

born on May 10, 1838 (d. 1865)
John Wilkes Booth
American stage actor who assassinated President Abraham Lincoln at Ford's Theatre in Washington, D.C., on April 14, 1865
born on May 09, 1837