First Location: Recreational Yard. This can be found in the middle of the hallway.

Second Location: Recreational Yard. Its next to mystery box.

Third Location: Recreational Yard. This is just right next to stairs. Left side.

Fourth Location: Recreational Yard. Same on the third but it will be on the right side.

Fifth Location: Eagle Plaza. Look on the right side facing to chapel.

Sixth Location: Eagle Plaza. This will be on the outside wardens office wall.

Seventh Location: Citadel. This will be next to spiral staircase.

Eighth Location: Citadel. Its inside of your progress dog.

Ninth Location: Citadel. Before shower door.

Check the video below for more details.