Good morning!
On December 7, 1941, the USS Pennsylvania was in Drydock #2, which was not a floating drydock. Ahead of her was the USS Downes, and the USS Cassin (DD-372). The USS Shaw was in a floating drydock, but not located close to the other three ships in their drydock. There are many copies of the famous photos showing the Pennsylvania, Cassin and Downes in Drydock #2 following the attack, and many copies of the famous photos of the Shaw exploding and burning, which makes this mistake a bit puzzling.