Hi, Kat. I hope you and/or your son has gotten in touch with your daughter.
Fox news has several links for search help on their website. There's supposed to be pictures and video of the survivors for families to see.
http://www.foxnews.com/story/0,2933,168455,00.html
I haven't heard anything more on my cousins, but I hope they're out of the house and in a shelter by now. I'll search for more info on them too.
Best of luck and prayers.