Walter D. Robertson - Pedigree | FamilyCentral
 21 Sep 1883 - 21 Dec 1963
 Abt 1860 - Bef 1900
 7 Dec 1861 - 2 May 1924
 1809 - Aft 1860
 2 Jul 1827 - 13 Jul 1911
 1786 - Jun 1870
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