Lincoln-Kennedy: Coincidence?

You may have seen this list before, but, nearing the fiftieth anniversary of the Kennedy assassination, here it is again:

"Lincoln" and "Kennedy" both contain seven letters.

Lincoln had been elected to the House of Representatives in 1846; Kennedy had been elected to the House of Representatives in 1946.

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

Lincoln ran against incumbent Vice President John C. Breckenridge for the Presidency; Kennedy ran against incumbent Vice President Richard M. Nixon for the Presidency.

Both Lincoln's predecessor (James Buchanan) and Kennedy's predecessor (Dwight D. Eisenhower) retired to Pennsylvania when their terms ended.

Both Lincoln and Kennedy dealt with advancing the rights of black Americans.

Both Lincoln and Kennedy had a son die during their presidential administrations. 

Both were assassinated on a Friday in the presence of their wives.

The assassins, John Wilkes Booth and Lee Harvey Oswald, were both Southerners who favored discredited political ideas.

Lincoln was shot in the presence of a couple, Henry Rathbone and Clara Harris. Rathbone was stabbed by Booth when Lincoln was shot.

Kennedy was also shot in the presence of a couple, Texas governor John B. Connally and his wife Nellie. Governor Connally was wounded when Kennedy was shot.

John Wilkes Booth shot Lincoln in a theater, and he was caught in a warehouse; Lee Harvey Oswald shot Kennedy from a warehouse, and he was caught in a theater.

Lincoln was shot at Ford's Theater; Kennedy was shot in Lincoln Continental, made by the Ford Motor Company.

Both Lincoln and Kennedy were succeeded as President by Southerners named Johnson.

Andrew Johnson was born in 1808; Lyndon Johnson was born in 1908.

Both Booth and Oswald were shot to death before they could stand trial.

Andrew Johnson left the Presidency in 1869; Lyndon Johnson left the Presidency in 1969.

Both Johnsons were succeeded as President by Republicans (Ulysses S. Grant, Richard M. Nixon) whose mothers were both named Hannah. 

Postscript: Some variations of this list say that Lincoln had a secretary named Kennedy who advised him not to go Ford's Theater and that Kennedy had a secretary named Lincoln who advised him not to go to Dallas. Lincoln, in fact, never had a secretary named Kennedy. Kennedy did have a secretary named Evelyn Lincoln, but there's no evidence that she advised her boss not to go to Dallas. (United Nations Ambassador Adlai Stevenson, though, did advise Kennedy to stay away from Texas.)