Mary J. Janssen, 55, of De Pere, passed away on Monday morning, September 8, 2014. She was born on March 26, 1959 to the late Alvin and Dorothy (Bain) Summers. She was a graduate of West De Pere High School, class of '77. On June 2, 1979, Mary was wed to Gary Janssen at St. Joseph's church in De Pere. They shared 35 wonderful years together. During that time Mary was employed by the Brown County Courthouse as a Court Coordinator. She was an avid Packer backer who enjoyed playing "the dogs". Above all else, Mary loved her entire family deeply, and was well known to get along with everyone. She will be profoundly missed by her husband, Gary; her children, Lindsay (special friend Greg), and Nicholas (Lydia) Janssen; grandchildren, Hayden, Brielee, and Airrhianna; siblings, Sandy Stank (Tom Fitzgerald), Richard (Kimberly) Summers, Nancy Summers (Jim Paape), Jan Van Den Heuvel, and Karen (Wayne) Jansen. Mary is further survived by brothers-in-law, Michael (Mary) Janssen and Dave (Mary) Janssen; sisters-in-law, Lynn (Jamie) Bartlett and Lori (Ron) Jaeger; and mother-in-law, Patricia Janssen, as well as many nieces, nephews, other relatives, and friends. She was preceded in death by her parents; an infant son, Eric Janssen; and father-in-law, Richard Janssen. Friends and family are encouraged to gather at Ryan Funeral Home, 305 North Tenth Street, De Pere, on Wednesday, September 10, 2014 from 4:00pm until 8:00pm. Visitation will continue on Thursday, September 11, 2014 at Our Lady of Lourdes Family Parish, corner of Suburban Drive and Lourdes Avenue, from 9:00am until 10:30am when a Mass of Christian Burial will be held with Fr. Tim Shillcox, O. Praem. officiating. Please visit www.ryanfh.com to send online condolences to the Janssen family. The family would like to extend special thanks to the teams at Aurora Hospital and BayCare Hospice for all of their thoughtful, kind, and compassionate care.