George Brettingham Sowerby III
George Brettingham Sowerby III (1843–1921) was a British conchologist, publisher, and illustrator.
He, too, worked (like his father George Brettingham Sowerby II and his grandfather George Brettingham Sowerby I) on the Thesaurus Conchyliorium, a comprehensive, beautifully illustrated work on molluscs. He was colour blind, and thus his daughter did most of the colouring of his engravings.