Section 35. The clerk or registrar may refuse to issue a certificate if he has reasonable cause to believe that any of the statements contained in the notice of intention of marriage are incorrect; but he may, in his discretion, accept depositions under oath, made before him, which shall be sufficient proof of the facts therein stated to authorize the issuing of a certificate. He may also dispense with the statement of any facts required by law to be given in a notice of intention of marriage, if they do not relate to or affect the identification or age of the parties, or a former marriage of either party, if he is satisfied that the same cannot with reasonable effort be obtained.