The principal of Bledsoe County Middle School was killed in a freak accident near Knoxville on Thursday.
Deborah Thompson was paying her bill at a restaurant when a car slammed into the building.
The school was on a two-hour delay on Friday.
Ms. Thompson, 58, had been in the Bledsoe County school system for 23 years and was previously a special education teacher.
Her husband was not seriously injured.
Authorities said the driver of the car is a former probation officer with multiple sclerosis.