An Australia national representative lock forward, he played in 6 Test matches between 1948 and 1949, captaining on 3 occasions.

Tyquin played his club football in both Brisbane and Sydney, gaining selection for the Queensland and New South Wales teams.

Whiticker's reference acclaims Bill as the premier lock forward of the Australian game in the five-year period immediately after WWII.

He asserts that Tyquin was a great cover defender who had one of the biggest punt kicks in the game at that time.

He was subsequently named as vice-captain to Col Maxwell for the 1949 Kangaroo Tour of England and France an appointment overshadowed by the controversial non-selection of Len Smith.