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Thomas Plantagenet Bigg-Wither (1845-1890)
1891 Obituary 
. . . . In 1872 he was attached to an expedition sanctioned by the Emperor of Brazil, under the direction of Captain Palm, a Swedish engineer, to explore and survey for a proposed railway from Curitiba in the province of Parana, to Miranda in the interior province of Matto Grosso, Brazil. One of the divisions of the expedition to which he was Assistant Engineer was allotted a section of the work in the valley of the River Ivahy, a large tributary of the River Parana . . . [more]