Diana and her husband Mike met on a blind date in February 1983 while visiting family in Del Rio, Texas. Mike moved to Fort Worth in May 1983 and they were married on July 29, 1983. They have three children. Their oldest is their son Robert Flanigan who is married to Josey and they have four daughters Jasette Elise, Olivia Rose, Adalynn Grace and Rae Ellen. Their second child is their daughter Ashley (Flanigan) Aaron who is married to Ben Aaron and they have four children, daughter Emma Leann, daughter Audrey Rose, son Roland Cooper and son Eli Benjamin. Their youngest is their son Kyle Patterson who is married to Tasha and they have three children, daughter Kenzie Allen, daughter Alexis (Lexi) Brook and son Keagan Boyd. All of Diana and Mike's children and their families are saved and members of Willow Park Baptist Church.