40 ILCS 5/6-143
Any annuity granted to a widow who remarries on or after December 31, 1989 shall be suspended when she remarries, unless (i) she remarries after attaining the age of 60 regardless of whether or not the deceased fireman was in service on or after the effective date of this amendatory Act of 1995 or (ii) she has been granted a Section 6-140 annuity as the widow of a fireman killed in performance of duty. An annuity suspended under this Section shall, upon application, be resumed if the subsequent marriage ends by dissolution of marriage, declaration of invalidity of marriage, or the death of the husband; this resumption shall not be retroactive.
If a widow remarries after attaining age 60 or after she has been granted an annuity under Section 6-140 and the remarriage takes place after December 31, 1989, regardless of whether or not the deceased fireman was in service on or after the effective date of this amendatory Act of 1995, the widow's annuity shall continue without interruption.
Any widow's annuity that was previously terminated by reason of remarriage prior to December 31, 1989 or suspended shall, upon application, be resumed, as of the date of the application, if the subsequent marriage ended by dissolution of marriage, declaration of invalidity of marriage, or the death of the husband, regardless of whether or not the deceased fireman was in service on the effective date of this amendatory Act of 1995; this resumption shall not be retroactive.
When a widow dies, if she has not received, in the form of an annuity, an amount equal to the accumulated employee contributions for widow's annuity, the difference between such accumulated contributions and the sum received by her, along with any part of the accumulated contributions for age and service annuity remaining in the fund at her death, shall be refunded to the fireman's children, in equal parts to each; except that if a child is less than age 18, the part of any such amount that is required to pay an annuity to the child shall be transferred to the child's annuity reserve. If no children or descendants thereof survive the fireman, the refund shall be paid to the estate of the fireman. In making refunds under this Section, no interest shall be considered upon either the total of annuity payments made or the amounts subject to refund.
40 ILCS 5/6-143