Wake County Public School Systems confirmed Lauren Stewart, 28, was a 4th grade teacher at East Garner Elementary School.
North Carolina State Highway Patrol said Stewart was the person behind the wheel of a Ford C-Max that slammed head-on into a Chevrolet Suburban on Jones Sausage Road on Thursday around 7:30 p.m.
Authorities said Stewart was headed westbound when her car crossed the center line.
Stewart and the driver of the Suburban, 53-year-old Calvin Stewart, both died from injuries caused by the crash. Lauren and Calvin were not related.
Four other people were inside the Suburban driven by Calvin: two adults, a teenager and an infant. They were all taken to the hospital with non-life-threatening injuries.
The Highway Patrol said the preliminary investigation revealed that speed and alcohol were factors in the crash, both being attributed to Lauren Stewart. The investigation is still ongoing.