John F. Kennedy, Michael J. Fox, Franklin D. Roosevelt, Philip K. Dick, Cecil B. DeMille, George W. Bush, George C. Scott, William F. Buckley, John D. Rockefeller, Johnny B. Goode, James Q. Wilson, and who else?
Why is it so popular with Presidents?
A whole other line of obsession is to start with J. Edgar Hoover, F. Scott Fitzgerald, and so on, and see how many others you can come up with.
Then there is J.R.R. Tolkien, H.L.A. Hart, and their successors.
I am pleased to have no middle initial.
Addendum: Angus comments.