Science Mary Jo Ellen Kopecky Posted by Who's Who Site Administrator on December 3, 2018 Most Recent Title: Chemist Company: University of Wisconsin Industry: Science Years in Industry: 48 Years affiliated with Marquis Who’s Who: 28 Contact Mary Jo Ellen Kopecky: Name(required) Email(required) Website Comment(required) Submit Δ Share this:TwitterFacebookLinkedInLike this:Like Loading...