Well, without more details, it's difficult to tell the 'Jenna Fischer Dewey Cox Story'. Jenna Fischer has had a great career in acting, especially with her memorable role in 'The Office'. Dewey Cox, on the other hand, is often a character in comedic or satirical works. It might be that someone has created a unique story where Jenna Fischer and the concept or character of Dewey Cox interact in a funny, strange, or interesting way. It could be a story set on a movie set, or a fictional event where their personalities collide. But again, this is all speculation without further information.
I'm not sure what the 'Jenna Fischer Dewey Cox Story' is exactly. It could be a made - up story by fans. Jenna Fischer is famous for her work in 'The Office', and Dewey Cox is from some other fictional realm. Maybe it's a story where Jenna Fischer's character from 'The Office' meets Dewey Cox in a crossover - type situation in someone's creative mind.
Since we only have the name 'Dewey Cox' from the 'dewey cox real life story' title, it's difficult to determine precisely who he is. He could be a fictionalized version of a real person, where the story takes some creative liberties to tell his tale. Maybe he was a pioneer in a certain industry, or just an individual with an interesting life full of anecdotes, but without more context, it's all speculation.
Definitely not a true story. It's a fictional tale crafted to entertain audiences with its unique plot and characters. Don't expect any real-life basis for it.