Colleen (Campbell) Demerath, died suddenly at her home at age 67 on Friday, March 5, 2021. She was born on December 17,1953 in De Pere, WI. Colleen was the daughter of the late Melvin and Irene (Charles) Campbell. On May 24, 1975 Colleen married Gary Demerath. Colleen enjoyed spring and summer months when she could decorate her lawn with flowers, and plan vacations to theme parks with her family. Colleen is survived by her children: Steven (Jeannie) Demerath, and Neil (Nicole) Demerath. Six grandchildren: Jasper, Christopher, Dakota, Evan, Naomi, and Mia Demerath; three brothers: Dennis (Terri) Campbell, Gene (Kay) Campbell, and Roy Campbell; two sisters: Sandy (Tim) Gilson and Janice Michiels. She is further survived by her husband's family; three brothers: Vernon (Karen) Demerath, Carlos (Lois) Demerath and Arlin (Sharon) Demerath; two sisters: Joyce (Bob) Huisenfeldt and Linda (Keith) Petersen. Colleen is survived by numerous nieces and nephews as well. She was preceded in death by her brother-in-law Clem Michiels and husband's siblings Dennis Demerath and Lorraine (Terry) Brick. Visitation begins at 5:00 p.m. on Saturday, March 13, 2021 at Ryan Funeral Home, 305 N Tenth Street, De Pere. A Memorial Service will be held at 7:00 p.m. Please visit www.ryanfh.com to send online condolences to the family.