Presidential Strangeness

Look what happens when a President gets elected in a year with a "0" at the end. (20-year increments)

1840: William Henry Harrison (died in office)
1860: Abraham Lincoln (assassinated)
1880: James A. Garfield (assassinated)
1900: William McKinley (assassinated)
1920: Warren G. Harding (died in office)
1940: Franklin D. Roosevelt (dies in office)
1960: John F. Kennedy (assassinated)
1980: Ronald Reagan (survived assassination attempt)
2000: George W. Bush ??

Odd coincidences between Lincoln and JFK

1:
Abraham Lincoln was elected to Congress in 1846.
John F. Kennedy was elected to Congress in 1946.

2:
Abraham Lincoln was elected President in 1860.
John F. Kennedy was elected President in 1960.

3:
Both were particularly concerned with civil rights.

4:
Both wives lost their children while living in the White House.

5:
Both Presidents were shot on a Friday.

6:
Both Presidents were shot in the head.

7:
Lincoln's secretary was named Kennedy.
Kennedy's Secretary was named Lincoln.

8:
Both were assassinated by Southerners.

9:
Both were succeeded by Southerners named Johnson.

10:
Andrew Johnson, who succeeded Lincoln, was born in 1808.
Lyndon Johnson, who succeeded Kennedy, was born in 1908.

11:
John Wilkes Booth, who assassinated Lincoln, was born in 1839.
Lee Harvey Oswald, who assassinated Kennedy, was born in 1939.

12:
Both assassins were known by their three names.

13:
Both names are composed of fifteen letters.

14:
Lincoln was shot at the theater named 'Ford.'
Kennedy was shot in a car called 'Lincoln' made by 'Ford.'

15:
Booth was assassinated before his trial.
Oswald was assassinated before his trial.

16:
A week before Lincoln was shot, he was in Monroe, Maryland.
A week before Kennedy was shot, he was with Marilyn Monroe.

Are there more?