Matthew Young Orr

English botanist and forensic scientist

English physiologist and nutritionist

Scottish physiologist

English ornithologist

Welsh physicist and university professor

Welsh botanist

Irish botanist

British paleontologist

British botanist and lichenologist

British botanist

Scottish-born Australian botanist

British botanist

British zoologist and geneticist

British soldier, intelligence officer and ornithologist known for theft and falsification of specimens

British Scholar

German-Jewish physicist and mathematician

Chemist and physicist from England

English physicist

Scottish nutritionist, Director-General of the United Nations Food and Agriculture Organization

English–Australian entomologist and geologist