If you want to know how to add a unique sidebar to blog page of Twenty ThirteenĀ  follow the steps in my previous post BUT you have to add a home.php file to your child theme folder (this is to override the template hierarchy of twenty thirteen). Create a file called home.php and copy and paste the contents of index.php. Scroll down to where you see get_sidebar() and just add your sidebar name get_sidebar(‘whatever-you-called-it’)