Complex sentence: Allchurch started his career at his home-town side Swansea Town in 1947, although he did not make his league debut until the 1950--51 season because of National Service, and went on to make 445 appearances and score 164 goals.
Split into simpler sentences: Allchurch started his career at Swansea Town in 1947, although he did not make his league debut until the 1950--51 season because of National Service. He went on to make 445 appearances and score 164 goals.