He has written four books including, Borrowed Soldiers: Americans Under British Command 1918, and numerous articles for well-known publications.
Currently he teaches at Norwich University, and works as an Investigative Archivist at the National Archives and Records Administration.
[2] In 1984,[3] Yockelson graduated from Frostburg State University with his undergraduate degree in history.
[4] Yockelson began working at the National Archives and Records Administration (NARA) in 1988.
[7] Previously Yockelson was a professor of military history at the United States Naval Academy.