Thomas Drummond (botanist)

Drummond quit the main party at Cumberland House to explore the Rocky Mountains.

In the spring of 1831 Drummond journeyed on foot by the Alleghany Mountains, reaching St. Louis in July, where he fell ill.

Hence he made a botanical tour in Texas; at Velasco an attack of cholera prostrated him, but on recovering he continued his labours.

His plant specimens from Texas were widely distributed in Europe and stimulated later botanical exploration.

The plants sent home by Drummond were described by Sir William Hooker in his Flora Boreali-Americana, his Journal of Botany, and Companion to the Botanical Magazine.