Hmm, I think I've tortured Leah & Sam enough, but Ezekiel's (or rather that of his adoptive mother Maisy) property could take some damage. (Their residence still hasn't been marked on the map, btw)
All mine will help out wherever they can - Zeke's would be an asset with the search and rescue, and possibly with some of the rebuilding, Sam'll mainly be helping with the fixing up of stuff, damaged windmills, generators, other machinery. Leah will help out just about anywhere she can - possibly helping out at the emergency shelter taking care of the people who've been left homeless by the twister.