It's not a true story. 'Old Henry' is the product of the imagination of the writers and filmmakers. They crafted the plot and characters to tell an engaging fictional tale.
Old Henry claimed to be a true story. It drew from actual happenings but might have incorporated artistic liberties to make it more engaging and cinematic.
It's possible that there is a 'Old Henry True Story' that is famous in a niche area, such as a historical society focused on a certain region. If Old Henry had some significant role in that region's history, like being part of a significant battle or discovery, then the story could be famous among those interested in that specific historical context.
If 'Old Henry True Story' is about a particular person named Old Henry, more context is needed. Maybe it's a story from a certain community or era. For example, if it's about an Old Henry from a small town in the 19th century, it could be about his life as a farmer, his family, and how he contributed to the local community. Without more details, it's difficult to provide a more accurate account.
I'm not sure specifically which 'Old Henry' true story you're referring to. There could be many stories with a character named Old Henry. It could be about an old man named Henry who had an interesting life, like perhaps he was a farmer and had many adventures on his farm.