Formal cooperative relations between Pentecostal denominations in the United States and Canada remained informal through the first half-century of the movement but were catalyzed by the 1942 formation of the National Association of Evangelicals (NAE) and the initial post-World War II gathering of the Pentecostal World Conference. Following the 1948 NAE meeting in Chicago, representatives of eight Pentecostal denominations held a preliminary gathering, which was followed by a second meeting also in Chicago …