born Nov. 3, 1798, Fairfax county, Va., U.S.
died April 28, 1871, Alexandria, Va.
U.S. politician.
A grandson of John Slidell aboard the Trent and imprisoned for two months (see {{link=Trent Affair">Trent Affair ). Released in 1862, he remained in England until 1865 but was unable to win support for the Confederate cause.