Complex sentence: Cowell was born in Trimdon Grange and worked as a coalminer at Blackhall Colliery as a teenager, as well as playing for the non-league football team Blackhall Colliery Welfare He he joined Newcastle in October 1943 at the age of 20.
Split into simpler sentences: Cowell was born in Trimdon Grange and worked as a coalminer at Blackhall Colliery as a teenager, as well as playing for the non-league football team Blackhall Colliery Welfare. He joined Newcastle in October 1943 at the age of 20.