Dennis Gerald Sullivan Obituary
The passing of Dennis Gerald Sullivan (Guilford, Connecticut) occurred on August 21, 2026. Dennis, born on March 11, 1948, is remembered by those who knew him. Leave a sympathy message to the family on the memorial page of Dennis Gerald Sullivan to pay them a last tribute.
He was predeceased by: his parents, Gerald Sullivan and Helen Sullivan (Wilson) of Guilford, CT.; his brothers, Gerald (Jerry) and Brian; and his nephew Matthew Sullivan.
He is survived by: his wife Helen Sullivan; his siblings, Margaret Higgins (Stephen) and John Sullivan (Andy); his nephews, Patrick (Amy) and Michael Sullivan; and his stepchildren, Rhiannon Hill, Sabrina Merryfield, Christopher and Bryan Sullivan. He is also survived by three step-granddaughters; and many beloved extended family members and friends.
In lieu of flowers, donations may be made to the Alzheimer's Association at 225 N. Michigan Avenue, Floor 17 Chicago, IL 60601 https://www.alz.org.
