Complex sentence: She also worked free-lance as a photographer for "Life" magazine, recording the desperate conditions of autoworkers during the labor strikes and protests that occurred throughout the U.S. during the formation of the automobile worker unions.
Split into simpler sentences: She also worked free-lance as a photographer for "Life" magazine. For "Life" she record the desperate conditions of autoworkers during labor strikes and protests that occurred throughout the U.S. during the formation of automobile worker unions.