International Seamen's Union

International Seamen's Union
Name	International Seamen's Union
Founded	1892
Dissolved	1937
Predecessor	Marine Transport Workers Association
Successor	National Maritime Union
Location	United States
Key people	Andrew Furuseth, Joseph Curran, William H. Davis
Affiliations	American Federation of Labor

International Seamen's Union was a national labor organization representing merchant seamen in the United States from the late 19th century into the 1930s. It emerged from earlier maritime associations during a period of intense labor organizing linked to port cities, shipping lines, and international maritime labor movements. The union played a central role in waterfront strikes, transatlantic seafaring disputes, and debates within the American Federation of Labor.

History

The union traces roots to 19th-century bodies such as the Steamship Sailors' Union and the Marine Transport Workers Association that responded to incidents like the Great Railroad Strike of 1877 and the growth of steamship companies including the Cunard Line, White Star Line, and Hamburg America Line. Founding leaders including Andrew Furuseth drew on experiences from events like the Chicago Haymarket affair era and from contacts with British groups such as the National Sailors' and Firemen's Union and the Merchant Navy. During the Progressive Era the union confronted wartime labor policies tied to the United States Shipping Board and regulatory frameworks influenced by the Jones Act and debates around the Seamen's Act of 1915. Interactions with labor figures like Samuel Gompers, Eugene V. Debs, and industrial unionists in the Industrial Workers of the World shaped strategy amid rivalries with maritime organizations such as the International Longshoremen's Association and the Seafarers' International Union. The 1920s and Great Depression pressures intersected with immigration policy from the Immigration Act of 1924 and maritime policy influenced by the Merchant Marine Act of 1920, culminating in internal splits and challenges from organizers like Joseph Curran and external groups including the Communist Party USA.

Organization and Membership

The union was structured with a national executive, district councils in port cities like New York City, San Francisco, Baltimore, New Orleans, and Seattle, and local lodges aboard vessels and at waterfront halls such as those near Ellis Island and Pier 42. Membership included able seamen, firemen, cooks, and stewards drawn from shipping lines such as Matson Navigation Company, American Export Lines, International Mercantile Marine Company, and foreign-flag carriers like Norddeutscher Lloyd. Record-keeping reflected registers similar to those used by institutions like the Bureau of Navigation and unions used cooperation with entities such as the American Federation of Labor and local bodies including the Union of Marine Cooks and Stewards. Prominent officers included Andrew Furuseth and William H. Davis, while activists such as Joseph Curran emerged from shipboard mutinies and strikes on vessels tied to the Panama Canal Zone routes and coastal tramps. Membership demographics showed sailors from Ireland, Scandinavia, Italy, Greece, Poland, Germany, Russia, Canada, and Philippines involvement, with organizing challenges tied to seafaring itineraries, flag-of-convenience issues exemplified by policies influenced by registries in Panama and Liberia and recruitment from ports like Liverpool and Hamburg.

Major Strikes and Labor Actions

The union led and participated in numerous maritime labor actions, including waterfront strikes in New York Harbor, the 1919 national marine strike involving crews on ships of the United States Shipping Board and merchants linked to the United States Navy procurement, and regional disputes such as the 1921 West Coast mariner stoppages associated with the Pacific Coast Maritime Strike. Strategic conflicts also connected to the 1912 Broadway strike and to broader labor unrest contemporaneous with the Seattle General Strike of 1919. Actions targeted major shipping companies like United Fruit Company, Standard Oil, and Bethlehem Steel-chartered vessels, and sometimes provoked federal intervention by agencies such as the Department of Labor and the U.S. Coast Guard. High-profile mutinies aboard vessels similar to the historical SS Linie incidents and strikes on tramp steamers drew attention from press outlets like the New York Times and labor weeklies including The American Federationist.

Relations with Other Unions and the AFL

The union maintained affiliation with the American Federation of Labor and often coordinated with unions such as the International Longshore and Warehouse Union predecessors, the Marine Engineers' Beneficial Association, the Seafarers' International Union of North America, and the Transport Workers Union of America. Tensions arose with industrial unionists in the Industrial Workers of the World and labor activists associated with the Communist Party USA as well as with conservative trade unionists aligned with leaders like Samuel Gompers and later William Green. Inter-union disputes involved jurisdictional lines over deckhands, stewards, and engine room personnel, and negotiations intersected with maritime employers represented by bodies like the Association of Shipping Interests and merchant associations associated with the Chamber of Commerce of the United States. The union's relations with seamen's groups abroad included contacts with the International Transport Workers' Federation and seafaring unions in Britain, Norway, Denmark, and Netherlands.

Political Influence and Legislation

The union lobbied on legislation affecting sailors' wages, safety, and welfare, engaging with lawmakers in Congress and committees such as those overseen by figures from White House administrations during the Woodrow Wilson and Herbert Hoover eras. Advocacy focused on statutes like the Seamen's Act of 1915 and amendments to the Jones Act and responses to maritime provisions in the Merchant Marine Act of 1920. Leaders testified before congressional panels and worked with reformers associated with the National Consumers League and social reformers linked to the Progressive Party and Tammany Hall-era politics in port cities. The union's political alliances sometimes aligned with labor-oriented politicians such as Robert L. Owen and opponents included business lobbyists from entities like the American Shipping Congress and legal contests heard in courts including the Supreme Court of the United States.

Decline, Merger, and Legacy

By the 1930s internal dissent, competition from emerging organizations such as the National Maritime Union and organizers like Joseph Curran, changing ship technology exemplified by dieselization and mechanization, and governmental maritime policy realignments under the New Deal contributed to the union's decline. The rise of CIO-era maritime organizing and the emergence of unions like the Seafarers International Union reshaped representation, leading to mergers, splits, and the absorption of membership into successor bodies during the era of labor realignment marked by the Congress of Industrial Organizations. The union's archival records, preserved in collections associated with institutions such as the Library of Congress and university oral histories at Columbia University and University of Washington, document its influence on maritime labor law, collective bargaining practices, and port community culture. Its legacy persists in modern maritime labor standards, pension debates linked to the Seafarers' Welfare Fund, and commemorations in port museums including exhibits at the National Maritime Museum and regional maritime heritage centers.

Category:Maritime trade unions Category:Labor history of the United States