He played occasionally for two seasons as a schoolboy but only established himself as the regular full back at the start of the 1946-47 season after Harold Boughton's retirement.
He went on to make 139 appearances for the club, before retiring in 1952.
In 1947-48 he made his debut for Gloucestershire and became first choice full back for club and county until his retirement in 1952, playing in the 1948-49 County Championship Final.
Bill played in all three England trials in 1948-49 but missed out on selection. The following season he was selected for the final trial but fractured a shoulder blade and was unable to play.
Finally, in March 1951, the unlucky Hook gained England selection against Scotland and played twice more for England in January 1952 against the touring Springboks and Wales.
Those who new Bill will know he was one of the club's true legends and an absolute gentlemen.
Bill's funeral will be at 1:45 on Tuesday 21stMay at the Baptist Church, Kendal Road, Longlevens.
Our thoughts are with his family at this difficult time.