He is survived by his loving wife, Michele; daughter, Morgan Dugan (fiancé William Patchel); two sons, William Dugan Jr (Lexie) and Dominick Dugan; two sisters, Heather Haislip and Jamie Souther (Justin); brother, Christopher Dugan (Rebecca); and a grandson, William Richard Dugan III. He was preceded in death by his parents, Gloria Jean (Heflin) Dugan and Harold W. Dugan Jr.
A celebration of life will be held on Saturday, January 24, 2026, at Mullins and Thompson Funeral Service, Stafford Chapel at 2:30 pm, with the family receiving friends an hour prior to the service.
In lieu of flowers, donations may be made in his name to the Neuroendocrine Tumor Research Foundation (NETRF) online at www.netrf.org/give or mailed to NET Research Foundation, 100 Hancock Street, Third Floor, Quincy, MA 02171
Online condolences may be sent at www.mullinsthompsonstafford.com