This series defines jurisdiction between lodges and districts within the Boilermakers Union as well as records of jurisdictional disputes. The original order of material on jurisdiction disputes between Boilermakers' Lodges 6 and 9 has been maintained and fills three folders. There is one folder with material on jurisdictional disputes between the Boilermakers and the Machinists. For additional correspondence on jurisdictional disputes between Lodges 6 and 9, see Box 8, Folder 3--Contract Administration -MarinShip.