In order to participate in the disabled workers' relief fund, an individual must be receiving workers' compensation benefits by virtue of and under the laws of this state in amounts less than those set forth in section one of this article, and be receiving such benefits under a permanent total disability award or be receiving such benefits because of the death of an employee: Provided, That a child of an employee deceased before July 1, 1967, who is under the age of twenty-three and is a full-time student, and, who, at the time of injury causing death, was dependent in whole or part upon the earnings of the deceased employee, shall be eligible for benefits payable from the fund established by this article in the same manner and amount as if death had occurred after July 1, 1967.