13.  The names of the persons to whom the provisions of Articles 9, 10, 11 and 12 apply shall be set forth in a list compiled and published from time to time by the President under section 2(3) of the Act, and such list shall show in regard to each person the date as from which for the purpose of this Order he first held the office or employment in question, and the date when he ceased to hold that office or employment.