What is gregory d smithers?

As an AI language model, I cannot guarantee that the person I am referring to is the same Gregory D. Smithers that is intended. However, based on my research, Gregory D. Smithers is a historian and professor of Indigenous Studies at Virginia Commonwealth University. He has published several books on Indigenous history and social issues, including "Native Southerners: Indigenous History from Origins to Removal" and "Cherokee Diaspora: An Indigenous History of Migration, Resettlement, and Identity." Smithers has also contributed to articles in various academic journals.