Former CIO union head listens to testimony before Labor hearings. Washington, D.C., Dec. 13. Homer Martin, President of the United Automobile Workers of America, AF of L faction, photographed this morning as he listened to testimony of Joe Ozanic. Martin was formerly Head of the CIO faction of the Auto Workers Union. He now charged that the NLRB favors the CIO branch of the Union. He is expected to testify in the afternoon session