U.S. labor department Samuel R. Martinez named chairman of Mountain Plains Federal Regional Council. Post My 24, 1974 p.13 Living costs in Denver climbed 12-13% in year according to U.S. Labor Department. Post My 6, 1975 p.12 Sued the Great Western Sugar Company of Denver on farm labor violation .. WIN AS 14, 1975 p.6 U.S. Department of; Labor orders 76 jobs cut in state employment unit. Post Ja 28, 1976 p.1,4