The union gradually grew, admitting women from 1914, and temporary staff as associate members from 1918.
That year, the regional unions amalgamated fully, and the federation became the Employment Department Clerks' Association.
In an attempt to reinvigorate itself, the union became the "Ministry of Labour Staff Association" in 1924 and, for the first time, appointed a full-time general secretary, Reginald Crook.
[1] The union spent much of its time campaigning for increases in wages, but this only succeeded in 1947, when Ministry of Labour clerks were placed on general civil service pay scales.
[1] Membership of the union was over 17,000 by 1973, when it merged into the Civil and Public Services Association.