I'm not sure specifically who 'Henry Dinkins' is without more context. There could be many people with this name. Maybe he's a local figure in a certain community, an artist, or someone with a personal story that's not widely known yet.
Without knowing the details of the Henry Dinkins story, it's tough to pinpoint the key elements. However, if he's a part of a community - based story, his interactions with the community members, his contributions to the community (such as volunteer work or community development projects), and any conflicts or resolutions within the community that he was involved in could potentially be key elements.
Henry in the 'Haunted by Henry' true story could be a historical figure. He could have been a soldier who died in a battle near a certain place and now haunts it. Or he could be a local hermit who had a strange reputation during his life and after his death, people started experiencing strange things and attributed them to his haunting. Without more details, it's difficult to determine exactly who Henry is, but he is clearly the central figure in this supposed true haunting story.
In 'the john henry story', John Henry was a heroic figure. He was a railroad worker who was known for his amazing physical strength and his unyielding spirit. He became a symbol of human resistance against the rise of machinery in the workplace.
In the 'Henry Sugar True Story', Henry Sugar is presumably the protagonist. He could be from any walk of life. He might be a working - class man who had a series of unexpected events occur to him. It's possible that he had a great passion for something, like art or music, and his story could be about how this passion led him on different paths in his life. Or he could be a bit of an enigma, with the story gradually revealing more about who he really is as it progresses.
Since I don't know the specific 'Henry Sugar real story', I can't say exactly who he is. He could be an ordinary person with an extraordinary story, or perhaps a fictional character based on a real - life prototype.