send a letter to author

My 9 year old granddaughter had an assignment to read a book and write a letter to the author and send it if they were still alive. She read “Saving Shiloh” and has written her letter. Is there an address she can send it to so she can complete her assignment?

The good news is I am still alive!

But if this website will not satisfy the teacher, and she must send me a letter through the U.S. mail, my address is 401 Russell Ave., Apt 713, Gaithersburg, MD 20877.