Franklin Graham has one brother, Ned, and three sisters — Gigi, Anne and Ruth. The best known of his siblings is Anne Graham Lotz, who is widely recognized as an outstanding Bible teacher. She has a ministry called AnGeL Ministries which is located in Raleigh, North Carolina (annegrahamlotz.org).
In May of this year, Anne wrote on her website that she believes Jesus is going to return soon "to take all of His followers to Heaven with Him in what is referred to as the Rapture." She warned that for those unbelievers who are left behind, "God's judgment is coming and it's going to be ugly." She further wrote:
While this [the Rapture] will be deliverance for His people, can you imagine the impact on our nation, let alone the world, when suddenly every single authentic Christian disappears?
Institutions will collapse. Banks will close. The Stock Market will plunge. Planes will fall out of the sky. Cars will crash on the road. Government in America at every level will disintegrate. Families will be torn apart. In the unprecedented turmoil, our nation will be vulnerable for our enemies to seize the moment and attack us. There will be mass chaos, confusion, fear, grief, despair, anger, threats, danger... judgment.
Anne pointed out that God's judgment leading up to the calamities caused by the Rapture would probably not come in the form of a nuclear strike or an ISIS terror attack. Rather, it is most likely to be like the judgment of God described in Romans 1 where it speaks of God backing away and lowering His hedge of protection and allowing evil to multiply.