William Nelson Page was an American civil engineer and industrialist. He was active in the Virginias following the U.S. Civil War. Page was widely known as a metallurgical expert by other industry leaders and investors as well as state and federal authorities.

David Thomas Ansted FRS was an English professor of geology and author of numerous books on geology. His role as a teacher at Addiscombe Military Seminary, where future East India Company army officers were trained, had an influence on the study of geology in the colonies.