Theresa Ann Derr nee Shafferkoetter, 57 of Union passed away Tuesday, September 8, 2015 at her home. Mrs. Derr, daughter of Guy Rudolph Shafferkoetter and Jody nee Cruz was born April 23, 1958 in Washington, Missouri. Theresa was of the Christian Faith and member of Union Baptist Temple. She was an avid crafter and enjoyed boating with her family. Mrs. Derr was preceded in death by her father, Guy Rudolph Shafferkoetter and one uncle, Charles Shafferkoetter. She is survived by her husband, Jerry Derr of Union; two sons, Joshua Wedel and wife Wendy of Vermont and Lionel Peterson of Union; two daughters, Rebecca Feltmann and husband Matthew of Washington and Lindsay Mahn and husband Jerry of Arnold; her mother, Jody Schafferkoetter of Union; one brother, Jubal Shafferkoetter of Jefferson City; five grandchildren, Avery Peterson, Riley Peterson, Gibson Peterson, Kaimi Peterson and Olivia Mahn; cousins; aunts; uncles; other relatives and many friends.