See the popularity of the boy's name Oleander over time, plus its meaning, origin, common sibling names, and more in BabyCenter's Baby Names tool. expert advice community
The average age of accession is 54 years and 11 months, which falls between Herbert Hoover (22nd) and Lyndon B. Johnson (23rd). The youngest person to assume office was Theodore Roosevelt (age 42), who became president following William McKinley 's assassination.he oldest president to assume office was Ronald Reagan (age 69 years, 349 days), who was also the oldest in office (age 77 years, 349 days), ending at the inauguration of George H. W. Bush. The oldest living president is George H. W. Bush, born June 12, 1924 (aged 7009288306000000000â  91 years, 131 days).
The oldest president to be elected to office was Ronald Reagan, who was 69 when he took office in 1981. Some more interesting facts about the ages of US presidents: The oldest elected president was Reagan (age 69); the youngest was Kennedy (age 43).Theodore Roosevelt, however, was the youngest man to become presidentâhe was 42 when he succeeded McKinley, who had been assassinated.onald Reagan was the oldest president when he was first inaugurated in January of 1981. He was exactly sixty nine years eleven months and fourteen days old. The second oldest president at the time of his inauguration was William Henry Harrison, who was 68 years of age.