Chirbury, Shropshire born left back Herbert “Bert” Trentham started his football career playing junior football for Knighton Town in 1924, Knighton Victoria in 1925 and Knighton United in 1926. He joined Hereford United in April 1926 and remained with them until April 1929, when he signed for Second Division West Bromwich Albion for a £600 transfer fee. He made his Football League debut in March 1930, in a Division Two match at Blackpool. During the following season he helped the club to achieve promotion to the First Division and played in the 1931 FA Cup Final, in which Albion beat Birmingham 2-1 at Wembley.
Trentham also appeared in the 1935 FA Cup Final, but this time earned only a runners-up medal as Albion lost 4-2 to Sheffield Wednesday. After 272 appearances for West Bromwich Albion, he re-joined Hereford United on a free transfer in May 1937, remaining with the club until moving to Darlaston in August 1939 before retirement with the Second World War.
His younger brother Douglas was a footballer with Everton in the late 1930’s.