DeDecker was born in Marengo, Iowa on 30 August 1961 and attended the University of Northern Colorado from 1979 to 1982. She initially studied painting but a teacher introduced her to sculpture and she began to study sculpting. She also studied weaving and textiles and travelled to Paris to study at the Goeblins School of Tapestry. After graduating, she was an apprentice to sculptor George Lundeen at his sculpture studio in Loveland, Colorado. She learnt the techniques of bronze casting, and after two years became a master craftsman at the studio. She also worked with Robert ZImmerman at his bronze studio where she assisted in the production of bronze monuments. DeDecker has also taught sculpture courses at the Loveland Arts Academy and the Denver Arts Students League.
- Statue of Harriet Tubman (Gainesville, Georgia)
- Statue of Harriet Tubman (Ypsilanti, Michigan)
- Statue of Harriet Tubman (Little Rock, Arkansas)
- Fountain at Cerritos Sculpture Garden, Cerritos, California
- Works in the Dale Nicholson Sculpture Garden, Little Rock, Arkansas
- "DeDecker, Jane - Artists - UrbanArt Commission". www.urbanartcommission.org. Retrieved 2017-08-30.
- "Jane DeDecker". www.redpianoartgallery.com. Retrieved 2017-08-30.
- "Jane DeDecker | Biography | Cavalier Galleries". www.cavaliergalleries.com. Retrieved 2017-08-30.
- "Claggett/Rey Gallery". Retrieved 2017-08-30.
- Peacock, Leslie Newell. "Forever, sculpture". Arkansas Times. Retrieved 2017-08-30.