George Brettingham Sowerby III
George Brettingham Sowerby III ( 16 September 1843 – 31 January 1921 ) was a British conchologist , publisher , and illustrator . 
<triplet> George Brettingham Sowerby III <subj> 16 September 1843 <obj> date of birth <subj> 31 January 1921 <obj> date of death <subj> conchologist <obj> field of work