International Association of Machinists and Aerospace Workers

IAMAW Local Lodge 37 was chartered on July 11, 1899, and dissolved in the late 1980s. Its records relate to the day-to-day activities of a major New Orleans union and its relationship to the International headquarters, and include constitutions, bylaws, minutes, correspondence, agreement reports, financial records, membership cards and artifacts.

International Association of Machinists and Aerospace Workers (IAMAW) Local Lodge 174 (Washington, D.C.), "Columbia Lodge," is one of the oldest Machinists' lodges in North America. IAMAW Local Lodge 174 (Washington, D.C.) records consists of photographs, pins, financial ledgers and documents from the early portion of the lodge's history.

International Association of Machinists and Aerospace Workers District Lodge 751 organized in Seattle, Washington, in 1935. It represents employees at Boeing Company. Its collection (1970s-2000s) includes digital files of documents, news clippings, periodicals, audio, photographs, and correspondence.