John Miller Hyson, Jr. (October 17, 1927 – September 26, 2009) was the former curator, director of curatorial services, and director of archives and history at the National Museum of Dentistry, an affiliate of the Smithsonian Institution located in Baltimore, Maryland.

He was also the author of many articles and books on the history of dentistry and was a practicing dentist for nearly 50 years.

He was also a member of the visiting dental staff at the University of Maryland Medical Center and taught oral surgery and operative dentistry at the University of Maryland Dental School during the 1950s.

[2] Hyson wrote numerous articles about the history of dentistry, including articles on the history of the toothbrush, George Washington's dental health and wooden dentures, women dentists, African-American contract dental surgeons in the Spanish–American War, Dr. James Baxter Bean and the establishment of first military maxillofacial hospital and the founding of the West Point Dental Service.

[2] In 1994, he published an article titled "Did You Know A Dentist Embalmed President Lincoln?"