William Taft actually said...
No person shall be certified as eligible who is under twenty-one or over fifty years of age, or who is not a citizen of the United States, or who is not of good character and habits and physically, mentally, and temperamentally qualified for the proper performance of diplomatic work.
Context
Executive Order 1143—Regulations Governing Appointments and Promotions in Diplomatic Service and for the Improvement of the...
11/25/1909