Careful about that word "all", FRiend. ;-)
If you're as interested as I am in this, here's where you can see all large US aircraft carriers lined up in sequential order, from oldest to newest -- from CV-1 Langley through CVN-80 Enterprise.
CV-1 Langley is named after "Samuel Pierpont Langley (August 22, 1834 – February 27, 1906)... an American astronomer, physicist, inventor of the bolometer and pioneer of aviation".
Samuel Langley, circa 1900, CV-1 Langley, 1927:
CVN-80 Enterprise is the ninth US Navy ship of that name, all of which date back to Gene Roddenberry's star-ship, James T. Kirk commanding. ;-)
CV-45 USS Roosevelt was the first carrier named after a president:
CV-65 USS Kennedy was the second:
From Nimitz (CVN-69) through Enterprise (CVN-80) only Vincen (CVN-70) & Stennis (CVN-74) and are not named after US Presidents.
Bottom line: 11 large carriers were named for US Presidents, 69 were not.
WWII PT boat commander, John F. Kennedy is the only president to have two carriers with his name.
Yes, there is a USS Jimma Carta SSN-23:
As for USS Clinton or Obama... well, here's what's proposed so far:
USS Clinton & USS Obama:
