John H. Miller Jr.

John H. Miller Jr. could refer to multiple individuals, as it is a fairly common name. However, without specific context or additional details, it's challenging to identify exactly which John H. Miller Jr. you are referring to. If you're asking about a particular person who is notable in a specific field (such as politics, sports, academia, etc.), or if there is a specific context in which you're referring to John H. Miller Jr.