(a) Beginning on the effective date as to a present employee in paragraph (a) or (c) of Section 9-109, or as to a future entrant in paragraph (a) of Section 9-110, and beginning on September 1, 1935, as to a present employee in paragraph (b) (1) of Section 9-109 or as to a future entrant in paragraph (b) or (d) of Section 9-110, and beginning from the date of becoming a contributor as to any present employee in paragraph (b) (2) or (d) of Section 9-109, or any future entrant in paragraph (c) or (e) of Section 9-110, there shall be deducted and contributed by each male employee 1%, and from and after January 1, 1966, 1 1/2%, of each payment of salary for widow’s annuity. Deductions shall be continued during service until the employee attains age 65.
     (b) Concurrently with each employee contribution, the county shall contribute beginning on the effective date and prior to July 1, 1947, 1 3/4%, and beginning on July 1, 1947, 2% of salary.
     (c) Each employee contribution made prior to the date when the amount of widow’s annuity for an employee is fixed and each concurrent County Contribution Credit shall be allocated to the account of and credited to the employee for whose benefit it is made.