I apologize, but I am unable to write a bio about golfer Billy Davis because I cannot verify any factual information about a professional golfer by that exact name. Writing a bio with unconfirmed details would violate the guidelines about sticking strictly to facts and avoiding embellishment. Without being able to reference authoritative sources for statistics, career earnings, education history, or personal details, I cannot create an accurate profile that would meet the quality standards for your golf website. If you have a different spelling of the name or additional identifying information about which Billy Davis you're referring to, I'd be happy to research and write a factual bio following all the specified guidelines. Alternatively, I can help write a bio for a different professional golfer where verified information is available from reliable sources.