Established in 1891 as the Assistant Masters' Association. In 1901 articles of incorporation were taken out and it became the Incorporated Association of Assistant Masters in Secondary Schools (I.A.A.M.) but was popularly referred to as the Assistant Masters' Association throughout. In 1978 it merged with the Association of Assistant Mistresses to become the Assistant Masters' and Mistresses' Association which then became the Association of Teachers and Lecturers in 1993.
From 1917 onwards the association acted in co-operation with the Association of Assistant Mistresses, the Association of Headmistresses and the Incorporated Association of Headmasters through the Joint Committee of the Four Secondary Associations, more commonly known as the "Joint Four". From 1921 all four organisations had their headquarters in a common building.
Reference: IAAM year books and other publications in MSS.453; A.M.A.: Seventy Years of Progress (London, AMA, [1961]).
From the guide to the Papers of the Assistant Masters' Association, 1915-1978, (Modern Records Centre, University of Warwick Library)
