Loving mother of Pamela Joyce (Kevin) and the late William E. Pierce, II. Grandmother of Christina Trimble, William E., III, Kevin Joyce, Jr., Nicholas Joyce and Lindsay Joyce. Mabel taught at East Windsor School District for 25 years and received a government recognition award for excellence in teaching in 1997. She also was a volunteer for 18 years at Princeton Medical Center in the Chaplaincy Greeting Program. Relatives and friends are invited to her graveside service on Friday 11 AM at Greenwood Cemetery, 1800 Hamilton Ave. Hamilton, NJ 08619. In lieu of flowers, please make a donation to a charity of your choice.