 Membership peaked at 3,361 in 1900, then gradually fell, as the Workers' Union set up rival laceworkers' sections.By 1933, its membership was down to 1,500, but was boosted when the Auxiliary Society of Male Lace Workers and Female Lace Workers' Society merged into it; it adopted a new name as the "Amalgamated Society of Operative Lace Makers and Auxiliary Workers".In 1963, the union became the Amalgamated Society of Operative Lace Makers and Textile Workers, and the membership declined levelled off, leaving it with 1,200 members by the end of the decade.