When any surviving spouse of a member shall die or remarry while receiving or being entitled to receive any benefits under any section except section thirty-three of this article, such surviving spouse shall not from the date of such remarriage, nor shall the estate from the date of death of such surviving spouse be entitled to receive any benefits hereunder whatsoever: Provided, That in any case where under the terms of this article benefits are provided for a child or children surviving the death or remarriage of such surviving spouse, payment of such benefits to such child or children shall be calculated for payment from the date such surviving spouse shall die or remarry.