And you'd be wrong.
William Erasmus Darwin (27 December 1839 - 1914)
Henrietta Emma Darwin (25 September 1843 - 1929)
George Howard Darwin (1845-1912)
Elizabeth "Bessy" Darwin (8 July 18471926)
Leonard Darwin (1850-1943)
Francis Darwin (1848-1925)
Horace Darwin (1851-1928)
Mary Eleanor died as a baby, Charles Waring died from scarlet fever at age 2, and Anne Elizabeth died of tuberculosis at age ten.
And you'd be wrong.