After 1920 there were no changes in the membership of the Synodical Conference until its breakup and dissolution in the 1950s and 1960s. Each of the four synods did, however, take on new names. The Missouri Synod became the Lutheran Church–Missouri Synod (LCMS) in 1947, the Little Norwegian Synod became the Evangelical Lutheran Synod (ELS) in 1958, the Wisconsin Synod became the Wisconsin Evangelical Lutheran Synod (WELS) in 1959, and the Slovak Synod became the Synod of Evangelical Lutheran Churches (SELC), also in 1959.