It's possible:
* The name is misspelled: Perhaps you're thinking of a different person involved in physical education. Could you double-check the spelling?
* It's a lesser-known figure: The individual may have contributed to physical education within a specific region or institution, but their work hasn't achieved widespread recognition.
* It's a specific text or course: The phrase might refer to a particular textbook or curriculum developed by someone named Charles Butcher. If you have more context, like the title of a book or the institution where this definition was encountered, it would help in finding the information.
If you can provide more details, I may be able to assist you further.