Jan Trebbien was born in 1957. He has been riding horses since he was nine years old. In the 1970s, he rode racehorses, including racing, and he has owned and co-owned several horses. During this period, he also drove horse transport while working in agriculture. In the 1980s, he operated his own fitness center and rode western horses from the mid-80s, rode the Houston Livestock Show & Rodeo in 1995 as well as herding cattle in Texas in 1997.