Strong possibility below from the Belfast Telegraph of 5 April 1945:
DEWART - April 4, 1945, at the District Hospital, Lisburn, DORCAS DEWART (late of Tullynore, Hillsborough). Funeral from above hospital tomorrow (Friday), at 2pm., to Annahilt Presbyterian Churchyard. -Deeply regretted.
The GRONI website has a Lisburn death registration for a Dorothy Dewart who died on 4 April 1945 at a reported age of 68, the record is pay to view.