It shall be the duty of every officer and employee of the department of bank supervision to report to the state comptroller the name of every person not known to be living who appears by the records of the bank to have a sum of money on deposit; provided this section shall only apply to deposits made five years or more prior to such report which have not been added to by further deposits or reduced by withdrawal. The state comptroller shall give publicity to any such fact in such manner as he may prescribe.