Dobyns, Henry References Dobyns, Henry American anthropologist 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: Native American/ The population of Native AmericaIn 1966 ethnohistorian Henry Dobyns estimated that there were between 9,800,000 and 12,200,000 people north of the Rio Grande before contact; in 1983 he revised that number upward to 18,000,000 people. Read MoreIn 1966 ethnohistorian Henry Dobyns estimated that there were between 9,800,000 and 12,200,000 people north of the Rio Grande before contact; in 1983 he revised that number upward to 18,000,000 people. Read More