Appointments of verification deputies shall be made upon written application of not less than five (5) nor more than ten (10) qualified electors of any territorial unit or units of the district, or the proposed district, as the case may be. The application shall state that the signers desire the appointment of the person whose name and address is given therein as a verification deputy for the purpose of taking the oaths of signers of petitions or certificates in the matter of ________.