(4)married daughters of a deceased son, whose husbands are alive :Provided further that the widow and the child, or children of a deceased son shall receive between them in equal part only the share which the son would have received if he had survived the subscriber.Explanation - Any sum payable under this rule to a member of the family of a subscriber vests in such member under Provident Funds Act, 1952, sub-section (2) of Section 2.