Herschel Clifford Parker

Herschel Clifford Parker is not a widely recognized figure or term in popular culture, history, or science based on my knowledge up until October 2023. It's possible that he could be a lesser-known individual, a character in a specific piece of literature, or a subject in a certain niche area. If you have more context or specific details about who he is or in what context you're asking, I could help you better. Please provide additional information!