April 26
The U.S. House of Representatives passes House Joint Resolution No. 184, a constitutional amendment to prohibit the labor of persons under 18 years of age. The Senate approved by the measure a few weeks later, but it was never ratified by the states and is still technically pending - 1924
On the orders of President Roosevelt, the U.S. Army seizes the Chicago headquarters of the unionized Montgomery Ward & Co. after management defies the National Labor Relations Board - 1944
With the official national unemployment rate standing at 9 percent, some 60,000 union members and other activists march in Washington, D.C., to demand jobs for all Americans - 1975
And this:

April 26, 1975 - Some 60,000 people marched in Washington, D.C., to demand jobs for all Americans. Speakers at a rally following the march included U.S. Senator Hubert Humphrey, Democrat from Minnesota. The rally ended prematurely, however, when several hundred young demonstrators, whom one organizer described as "unemployed people full of frustration and anger," charged the speaker's stand.
As the U.S. car industry tanks, the UAW agrees to concessions with Chrysler Corp. in return for a 55 percent stake in the company. The union then sold the shares to fund a trust that took over retiree health care costs - 2009
Labor history found here:
http://www.unionist.com/today-in-labor-history & here:
http://www.workdayminnesota.org/