The Grand Unified Alan of Alanland

The Grand Unified Alan of Alanland is the chief executive of the government of Alanland. His official limousine gets ninety-three rods to the hogshead by statute. Nobody can rule Alanland unless their legal first name is Alan (or Alana, or Alanis, maybe Allen but we're keeping an eye on you). For how can one be Grand and Unified if they are not an Alan?

List of Grand Unified Alans of Alanland

 * 1) Alan Davison
 * 2) Alan Brown
 * 3) Alan Bradley
 * 4) (none)
 * 5) Alan Lower Wacker
 * 6) Alan Colfax
 * 7) Alan Figueroa
 * 8) (none)
 * 9) Alan Bannister
 * 10) Alan Register
 * 11) (unknown)
 * 12) (unknown)
 * 13) Alan Torrington
 * 14) Alan Corcoran
 * 15) Alan Merritt
 * 1) Alan Torrington
 * 2) Alan Corcoran
 * 3) Alan Merritt