Lynch attended Sydney's Waverley College,[3] before being graded by the Eastern Suburbs club.
He made his first grade debut in 1930, the same year as 1930s league star Dave Brown, who had also attended Waverley College.
He was a member of the Eastern Suburbs side that was defeated by South Sydney in the 1931 premiership decider.
[3] He played in the centres replacing the injured Jack Beaton in the 1936 premiership-deciding match against Balmain, scoring a try.
[4] In 1963 he was a manager for that year's Kangaroo tour and a deputy vice-president of the New South Wales Rugby Football League.