Danbury Mayor Dean Esposito is mourning the loss of his mother, Barbara Pooler Esposito.  She passed away on Sunday at age 89.  She worked for 20 years as a private duty nurse and retired as head nurse for Fairfield Hills in 1994. A Mass of Christian Burial will be celebrated on Friday, at 10:30am at St. Peter Church, Danbury. The service is open to the public.  No calling hours will be held and interment in St. Peter Cemetery will be private.