Robert B. Adam

American art critic, curator, and collector

American translator and collector

American botanical collector

American landscape architect, university teacher and botanical collector

American botanist, botanical collector and teacher

American botanist and botanical collector

American botanical collector

Botanical collector

American museum field collector

American missionary, lepidopterist and scientific collector

American mineral collector and dealer

American financier and art collector

American photographer, historian, writer and collector

American entrepreneur and collector

United States lepidopterist and collector

U.S. entomologist and lepidopterist

American entomologist

Botanical collector

American botanist, horticulturist, forester and botanical collector

American investor and collector