In 1968, Glenn became co-owner with his twin brother Lynn Hopper in Mountain Home and his brother Merlin Hopper of Heber Springs. He then moved to Heber Springs in 1990 with his family to become owner of Hopper Termite of Heber Springs. Glenn is a member, past president and active board member of the Arkansas Pest Management Association. He is also a member of the National Pest Management Association and licensed by the Arkansas State Plant Board in termite and pest control. Glenn is a member of the First Baptist Church of Heber Springs. His family includes his wife Billie Hopper, one son Danny Hopper, and a daughter Glenda Derrickson. Glenn enjoys helping in the Heber Springs community and other leisure activities such as hunting, fishing, and playing music with his friends.