I played with your photo in Photoshop CC 2015. First, I noticed it was flopped (look at the writing in the upper corner. So I flopped it back the way it should be -- I think!
The I used the Patch tool to remove some spots, the wrinkle in the floor and the stain above the handsome family. (I love that deco background!) Then, I selected the area just above and around the heads in the back row to apply the Dust & Scratches filter to remove the slight pixelation there without blurring the background or heads. I used the Clone tool in a couple of spots where the Patch tool wouldn't work well (such as smudges between two highly contrasting shades.
What were you trying to fix in this photo except that stuff? I didn't see any paper texture. Maybe some other clever retoucher took care of that before I barged in. http://i494.photobucket.com/albums/r...ps2dqe13vf.jpg