Meet them and hear their story- Ruth Haller, Dorothy (Dodo) Maitland, Janet (Jan) Moeller, Rita Stock, Sue Vanderwarf and Sarah Williamson. They are all recent Iowa State College Applied Arts graduates, who are working for Hall Brothers Inc. of Kansas City, makers of the world-famous Hallmark greeting cards. As undergraduates of Iowa State College, several of them were introduced to Halls through Miss Marguerite Kuna, personnel director for the company.