§ 17. Aliens. Compensation under this chapter to aliens not residents or about to become nonresidents of the United States or Canada, shall be the same in amount as provided for residents, except that dependents in any foreign country shall be limited to surviving spouse and child or children, or, if there is no surviving spouse or child or children, to surviving father or mother whom the employee has supported, either wholly or in part, for the period of one year prior to the date of the accident.