Paul Belloni Du Chaillu was a French-American traveller, zoologist and anthropologist. He became famous in the 1860s as the first modern European to confirm the existence of gorillas
Wynfrid Lawrence Henry Duckworth was a British anatomist and former Master of Jesus College Cambridge. The Duckworth Laboratory (Department of Biological Anthropology) at Cambridge University is named after him
James Duff, 5th Earl Fife, was a Scottish nobleman and politician
Peter Martin Duncan was an English Palaeontologist. He was a Fellow of the Zoological Society of London, holding office in the Society
Botanist and Director of Royal Botanic Gardens, Kew, England
Sir William Hart Dyke, 7th Baronet, was an English Conservative politician and tennis pioneer
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