He played mainly as a left-back. Harrow signed for Chelsea for a fee of £50 from Croydon Common in 1911 and remained until 1926. He played twice for the England national team, winning caps against Northern Ireland and Sweden in 1922 and 1923 respectively.
He died in 1958.
He was club captain for much of that period, and led Chelsea to their first appearance in an FA Cup final in 1915, although they lost 3-0 on the day to Sheffield United in a match overshadowed by World War I. He was the first Chelsea player to make over 300 appearances, and ended his career with 333 in all competitions.
He was good at tackling and he also had an accurate shot.
