Contact staff by calling 920-380-7491 or by emailing directly:


Executive Director

Maria Costello

Maria has been the Executive Director of the Paper Discovery Center since May 2016. Prior to this she lived in Milwaukee and was the director of two art museums. She finds working with nonprofits fulfilling and uses more of her skills and talents than her for-profit positions ever allowed.

Besides travel (often to visit grandkids!), she enjoys good books, live theater, movies and interior design.

She feels honored to be part of such a wonderful and talented team at the Paper Discovery Center.



Michael Breza, Lead Educator

Michael fell into museum work by good fortune, learning his craft on the job. For over 28 years he has created exhibits that make people happy. He loves exhibit work; it makes him think and explore new directions. He does not know where his talent comes from, but he is grateful for it.

One of the most interesting aspects of museum work for Michael is his work with some unusual items: He has stood in a treasure vault filled with shipwreck coins, driven Abraham Lincoln’s shawl to a museum, smelled perfume from the Titanic, held a Viking sword, hung artwork of dazzling skill, and put the Wicked Witch of the West hat on display.


Sharon Clothier

Sharon works as an Educator, bringing additional experience as a museum curator and mother to her role. Entering her fifth year at Paper Discovery Center, she enjoys leading workshops and interacting with visitors of all ages.


Carol Couillard

Carol works as an Educator at the Paper Discovery Center. She loves coordinating Scout Programs, researching STEM-related topics for school groups, and talking about the history of paper-making with visitors.

She is a graduate of the University of Arizona, with a degree in History. Before starting at the Paper Discovery Center, she worked as a program coordinator for a natural history museum and as a school librarian.


Wendy Hayes

Wendy has recently retired from the Weyauwega-Fremont School District where she taught 2nd grade for 35 years. Upon being hired by the Paper Discovery Center in September 2016 she discovered that her teaching days were not over. She enjoys working with the many students who visit our center on fieldtrips. She also plans programs for Home School Mondays. She enjoys working with visitors and learning about their hometowns, some as far away as India, England, Italy, Japan and Finland. The best part of her day is making paper in the paper lab and planning craft projects.


Business Coordinator

Michelle Fietzer

Each day as the Business Coordinator for the Paper Discovery Center is interesting and varied. Business management experience along with 25 years as an educator helps Michelle bring creative solutions to the PDC. She works on keeping you informed about the fun and interesting classes our educators develop, thanking our generous donors or planning our big annual events. Each year we have a recognition event for key contributors to the paper industry called the Hall of Fame dinner. Along with the rest of the team, she helps to plan and execute the event to ensure it is a fun and successful evening for all. More social events are being planned for the public, so continue to check out our website and Facebook page. When you come to visit, you will meet our amazing staff and see the beauty of the Fox River up close.


General Questions

Ann Wittenberg, Guest Services

Ann recently moved back to Wisconsin from Georgia, bringing many years of customer service experience to her role in Guest Services. Ann greets visitors, assists the educators in the paper lab, and strives to ensure an enjoyable experience for all of the Paper Discovery Center’s guests.