Illinois Statutes Chapter 40. Pensions § 5/11-143. Widow's annuity--Present employees and future entrants--Withdrawal and death before age 55

(1) If service is 20 or more years, the total credits for age and service annuity and widow's annuity, and, in addition, if he was a present employee, the total credits for prior service annuity and widow's prior service annuity; or

(2) If service is 10 or more but less than 20 years, the total credits for age and service annuity and widow's annuity from employee contributions plus 1/10 of the total credits for age and service annuity and widow's annuity from city contributions for each year of service after the first 10 years of service, and, for the widow of a present employee, 1/10 of the total credits for prior service and widow's prior service annuity from city contributions for each year of service after the first 10 years.

No city contributions shall be used for a widow's annuity in excess of that which she would receive if the employee had lived until he attained age 55 and had not re-entered the service and an annuity were fixed for her on a reversionary annuity basis as of her age when her husband would have attained age 55.