Labor unions

Men guarding a non-union coal mine during the coal strike. From: Photos used in the 1984 Truman Centennial Exhibit. National Archives Photo No. 306-NT-136.

Crowd with signs promoting organized labor founding a third party for the 1948 presidential election. The signs indicate that they need to defeat President Harry S. Truman. From: Photos used in the 1984 Truman Centennial Exhibit.

Strike of television workers during Republican Convention in Philadelphia. From: Photos used in the 1984 Truman Centennial Exhibit. National Archives Photo No. 306-NT-135.

A crowd of people linked in chains and holding a sign that says "Back to slavery with Taft-Hartley bill." From: Photos used in the 1984 Truman Centennial Exhibit.

United Mine Workers President John L. Lewis (right) and Bituminous Operators Group Chairman Ezra Van Horn (left) meet with Secretary of Labor Lewis B. Schwellenbach (center) in the Labor Department. From the scrapbooks of Matt Connelly, Vol. 1.

Unidentified Greek officials are holding a wreath to be placed at a monument to Greek-American friendship during a Labor Day parade in Athens, Greece.

Secretary General Fotis Makris (center, holding wreath) of the General Confederation of Greek Labor is placing a wreath on the monument of Greek-American Friendship in Athens, Greece. He and unidentified others participated in a Labor Day parade in Athens.

Members of the Labor and Manpower Division of the United States Economic Cooperation Administration are posing for a photograph with Greek Trade Unionists at a Labor Day parade in Athens, Greece. Among those present are John Litsas, Pay Frayne, and James Leontarides. All others are unidentified.

The Women's Union of Technical Textile workers are marching in a Labor Day parade in Athens, Greece. All are unidentified.

Members of the Boiler Cleaners Union are marching in a Labor Day parade in Athens, Greece. All are unidentified.