Credit, or blame, for the first scholarly ranking of the presidents usually goes to Harvard historian Arthur Schlesinger Sr., who conducted a poll for Life magazine in 1948. He asked 55 ...

Presidents, on average, have lived to 72 years. President Joe Biden, one of four presidents born in the 1940s, is already one of the ten longest-living presidents. Biden turned 82 in November.

Presidents, on average, have lived to 72 years. President Joe Biden, one of four presidents born in the 1940s, is already one of the 10 longest-living presidents. He turned 82 in November.

Presidents, on average, have lived to 72 years. President Joe Biden, one of four presidents born in the 1940s, is already one of the 10 longest-living presidents. He turned 82 in November.

Presidents, on average, have lived to 72 years. President Joe Biden, one of four presidents born in the 1940s, is already one of the 10 longest-living presidents. He turned 82 in November.

Presidents, on average, have lived to 72 years. President Joe Biden, one of four presidents born in the 1940s, is already one of the 10 longest-living presidents. He turned 82 in November.

Graphic: The 10 presidents who lived the longest — and the shortest Calvin Coolidge was president in 1924, the year Jimmy Carter was born.