Over 30 years of retirement, Tisdale would collect as much as $443,476, according to a projection by Local Government Information Services (LGIS), which publishes Chicago City Wire.
The projection assumes Tisdale received $9,321 in the first year of retirement, then 3 percent annual increases thereafter, compounded.
After 3 years of retirement, Tisdale will have already received $28,811 in retirement benefits, or more than the sum total of the retiree's contributions to the teachers' pension fund.