John Bryan Holcombe, 60, died Sunday at Sutherland Springs First Baptist Church where he was serving as a guest pastor.
He was known to friends and family at Bryan.
Bryan's wife Karla, 58, also died on Sunday along with six other members of the Holcombe family.
Bryan's son Danny was killed, along with his 18-month-old daughter Noah.
His daughter-in-law Crystal, who was pregnant at the time of her death, also perished, as did three of her children from a previous marriage.
Crystal, a widower, had four children with her first husband.
The children, 13-year-old Greg Hill, 11-year-old Emily Hill, and 8-year-old Megan Hill, were killed inside the church, 6-year-old Evelyn was taken to University Hospital but is in stable condition.