Holabird ordnance depot, Baltimore, Maryland. A group of WAACS (Women's Auxiliary Army Coprs) receive instruction in tire structure and care as part of the automotive preventive maintenance course which all Army men and women at Holabird must take. Instructor is H.T. McKinley of Baltimore, Maryland. WAACS are, left to right: (seated) Mary Triplett, 2nd officer, Denver; Eva V. Alexander, 3rd officer, Los Angeles, California; Ruth M. Anderson, 3rd officer, Saint Paul, Minnesota; Betty Brewer, 3rd officer, Atlanta, Georgia. Standing: Rachel Barnett, 3rd officer, Fort Wayne, Texas. Mildred Cribby, 3rd officer, Saint Petersburg, Florida; Ura M. Ankrom, 3rd officer, Cleveland, Ohio and Dorothy Irwin, 3rd officer, Chicago, Illinois