William Lewis Herndon References William Lewis Herndon American explorer Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Amazon River/ Early European exploration, William Lewis Herndon published the report that he and Lardner Gibbon—both lieutenants in the U.S. Navy—had made to Congress under the title of Exploration of the Valley of the Amazon. Read More, William Lewis Herndon published the report that he and Lardner Gibbon—both lieutenants in the U.S. Navy—had made to Congress under the title of Exploration of the Valley of the Amazon. Read More