Aetolian League
After the War Chatham won the Kent Amateur League Premier Division in 1946–47, which was to be their last honour under that name. On 7 January 1947 they merged with Shorts F.C., with the amalgamated club taking the name Chatham Town at the request of the local council. They then joined Division One of the Kent League for the 1947–48 season and stayed there until 1959, when the Kent league disbanded. For the 1959–60 season they joined as a founding member of the Aetolian League. The following year they captured the League Championship and the Aetolian League Cup Final. In 1964–65 the Aetolian League merged with the London League to form the Greater London League, and the club moved to the Metropolitan League. Four Seasons later they returned to the Kent League when it was reformed in 1968.