Author of Wagner Labor Relations Act happy over Supreme Court decision. Washington, D.C., April 12. Senator Robert F. Wagner of New York, author of the Wagner Labor Relations Act, was all smiles today as he heard the Supreme Court uphold the validity of the act. Hailed a great victory for the government, the Supreme Court unanimously upheld the act in cases of the Jones and Laughlin Steel Corp., and the Washington, Virginia and Maryland Coach Co., 4/12/1937