Betty Lou Underwood, age 72, of Knoxville went to be with her heavenly Father on August 27, 2017. She was retired from TMSI after many years of service. Betty is preceded in death by her father and stepmother, Walter and Rosie Gann and brother, Frank Gann. She is survived by daughter, Debra Collins and husband Jason; grandchildren, Erica Wilson and fiancé Jason Dunn, Kandace Wilson, Skylar Wilson, Nicholas Collins; great-grandchild, Rhett Evans; sister, Faye Kelly and husband Frank; and brother, Larry Gann. The family will receive friends Thursday, August 31, 2017, from 6:00pm-8:00pm at Mynatt Funeral Home Halls Chapel. Service to follow at 8:00pm with Rev. James Sharp officiating. Family and friends will meet at Mynatt Funeral Home Halls Chapel Friday, September 1, 2017, at 10:00am and proceed to Eastview Memorial Gardens for an 11:00am interment. Honored to serve as pallbearers are: Jason Collins, Nicholas Collins, Skylar Wilson, Jason Dunn, Gary Collins, Brad Collins and Rhett Evans. Please leave online condolences for the Underwood family at www.mynattfh.com.