My father was a GM2 on the USS Indianapolis(CA-35) and when Pearl Harbor occurred he was with the ship at Johnson Island. Detached from the Indy in 42 he went on to the USS Ratford (DD-446) and spent the rest of the war on her, including the Battle of Kula Gulf.
My maternal grandfather joined the Army after Pearl Harbor at the advanced age of 31. He went to OCS and ended up with the 2nd Cavalry Group fighting in NW Europe. He even managed to get shelled by the Russians in late April of 45. He stayed with the service after the war in the Guard and retired a Lt. Col.