For a time, he was one of the ministers who served on the board of Jim Bakker's PTL organization as it tried to regroup after Bakker resigned in early 1987 amid a sex scandal.
By 1970 his syndicated program appeared on more TV stations in America than any other program and eventually reached more than 600 stations.
Four children: Rex Jr., Don, Charles and Elizabeth.
His sister preceded him in death.
Was admired by Elvis Presley. When Presley died, Humbard spoke at his funeral.