sewall wright's paternal grandfather (http://www.geni.com/people/John-Seward-Wright/6000000010506000055 …) and maternal grandmother (http://www.geni.com/people/Mary-Vashon-Wright-1838-79-Sewall/6000000010516510463 …) were brother and sister
.@hbdchick so wright married his father's sister's daughter (fzd), in case you were wondering. (i was! (~_^) )
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@hbdchick I 'do' genealogy as a hobby and you'd be surprised to see how often family trees get rather 'linear' with cousins marrying.Thanks. Twitter will use this to make your timeline better. UndoUndo
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