Greydon has been a Knott County resident most of his life. He graduated from Knott County Central High School in 1984. He has had careers as a maintenance technician, a professional land surveyor, and a critical care paramedic. He is the owner/operator of Safeguard Home Inspections.
His pastimes include fishing, deer hunting, and spending time with his wife of 36 years, 3 daughters, 3 granddaughters (with one more on the way!).