Hi betty,
I served on the USS Quincy from the day that she was commissioned
until the end of the war.
I too received the presidential certificate relating to our cruise
with the President to the yalta trip.
Our captain received the original certificate and from that he had
copies made for all of the crew .There were many extra copies made
so your father may have gotten his later.
The V division was our aviation division. I saw you fathers
picture in the div. crew photos. I did not know him . He may have
come aboard ship when we entered the Pacific or just after we
came home with the president when we did receive new crew members.
My dad was a chief petty officer, CY Division. His name was Ralph J. Smith (he just passed away). He was basically the assistant to the XO. As such, he accompanied the XO (commanding officer) to meetings etc. He was able to meet FDR, Churchill, King Farouk and Haile Selassie (spelling?).
You can Google USS Quincy videos and newsreel videos of the event and cruise videos and pictures will pop up. Also, there are at least two excellent books on the subject both of which were present in our house.