Where a petition is filed for the appointment of a guardian for a minor as required by section 5905.05 of the Revised Code, a certificate of the administrator or his authorized representative setting forth the age of such minor as shown by the records of the veterans' administration and the fact that the appointment of a guardian is a condition precedent to the payment of any money due the minor by the veterans' administration shall be prima-facie evidence of the necessity for such appointment.
R.C. § 5905.07