Owen is the son of Chrissie Leatham and the grandson of Peter Robertson Leatham. Chrissie Leatham was one of Scotland's greatest accordion players and teacher to many of Scotland's best known musicians including Kenny McGinty, Simon Thoumire, Phil Cunningham, Ian McPhail, Sandy Brechin, Jim Johnstone to name but a few.
Owen is the offspring of Chrissie Leatham and the great-grandson of Peter Robertson Leatham. Chrissie Leatham was one of Scotland's most renowned accordion players and instructor to many of Scotland's most celebrated musicians, including Kenny McGinty, Simon Thoumire, Phil Cunningham, Ian McPhail, Sandy Brechin, Jim Johnstone, among others.