Jesse Lawrence Tombaugh - Pedigree | FamilyCentral
 1 Aug 1886 - Dec 1977
 16 Jun 1853 - 1935
 14 Dec 1854 - 27 Feb 1942
 1797 - 9 Jun 1880
 1811 - Bef 1880
 7 Oct 1818 - 24 Jun 1885
 19 May 1824 - 6 Nov 1899
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    1.
Living