The widow of any court interpreter, who shall die from any cause while in the service, whether the said court interpreter shall have served as such for a continuous period of thirty years or not, or whether such court interpreter shall have reached the age of sixty years or not, shall receive a pension, so long as she shall remain unmarried, equal to one-half of the amount of the annual salary of such court interpreter at the time of his death.
N.J.S. § 43:10-99