Help Janet rebuild her home

My sister-in-law Janet lost her home along with her son’s home from a flash flood in Tennessee. One home went down with the flood along with 2 cars, the other home is unlivable. They have been evacuated and have very little of their belongings . Two of them don’t even have shoes. They have no idea where they will be staying at this point. Any help towards their recovery is greatly appreciated. Thank you so much.