Section 2A. Examination of records and returns of children born out of wedlock or abnormal sex births, or fetal deaths, or of the notices of intention of marriage and marriage records in cases where a physician's certificate has been filed under the provisions of section twenty A of chapter two hundred and seven, or those of persons born out of wedlock, or of copies of such records in the department of public health, shall not be permitted except upon proper judicial order, or upon request of a person seeking his own birth or marriage record, or his attorney, parent, guardian, or conservator, or a person whose official duties, in the opinion of the town clerk or the commissioner of public health, as the case may be, entitle him to the information contained therein, nor shall certified copies thereof be furnished except upon such order, or the request of such person. The provisions of this section shall not apply to such records, returns or notices recorded or filed prior to January first, eighteen hundred and forty-one or to such copies thereof.