•
Simeon Woodruff, under the command of Kendrick, served as first mate from September to November 1787. A former gunner's mate during the final voyage of Captain James Cook, R.N., was the only man in the entire Columbia Expedition leaving Boston on the first voyage to have been to the Pacific. •
Joseph Ingraham, first mate under the command of Kendrick. In 1790 he was captain of , which competed with
Columbia in the fur trade. •
Robert Haswell, first mate under the command of Gray in 1791–93 during the second voyage to the Pacific Northwest. •
John Boit was fifth officer of
Columbia on its second voyage from 1790 to 1793; he was fifteen years old on the day of its departure. His log of the expedition is the only complete account of the second voyage of
Columbia, and only one of two written accounts of the first European Americans to locate what they would call the Columbia River on May 12, 1792. ==Legacy==