Police charged an elderly driver they say injured a mother and daughter selling Girl Scout cookies when she backed into a troop's cookie booth outside a grocery store over the weekend.

Chapel Hill police charged Thelma McBride Holloway, 77, of 105 Elizabeth St., Chapel Hill, with failure to reduce speed to avoid collision.

Holloway was backing her 1991 Lincoln out of a parking spot Saturday afternoon in front of the Harris Teeter at University Mall when her foot slipped off the brake and onto the accelerator, according to a police report.

The car ran up the sidewalk and hit Elise Michelle Hoffman, 44, and her daughter Anne Katherine Kelley, 11. Both were taken to UNC Hospitals. The hospital would not release their conditions Monday afternoon.

On Sunday, Lt. Leo Vereen said the accident broke both of Hoffman's legs, and Anne's collar bone and one of her legs.

Hoffman and Anne are the wife and daughter of Mike Kelley, a member of the Chapel Hill-Carrboro Board of Education.

Before the accident Saturday, Hoffman and two of her daughters, Anne and Elizabeth Kelley, had gone out with another mom and daughter from Girl Scout Troop 317 to sell cookies for a few hours.

Hoffman's older daughter, Elizabeth, was not hurt in the accident.

Troop 317's members are seventh graders, but Anne "just loves to sell cookies," said Nancy Oates, who had brought her own daughter out to sell cookies with the two Kelley girls that day. "It was [either] stay at home with her dad or her brother, or join the big girls and sell cookies."

The group set up a card table a little after 11 a.m. with a big felt Girl Scouts banner. They had already sold about 65 boxes when, about 1:20 p.m., Holloway's car squealed out of its parking space.

The car continued to roll toward the girls' booth, and Hoffman yelled for the girls to get out of the way. Then she got hit, said Oates, a News & Observer employee.

Hoffman is the "cookie mom" for her daughters' two Girl Scout troops, Oates said, which means she keeps track of cookie pre-orders and booth sales, among other responsibilities.

Oates said the troop is trying to schedule a counselor to talk to the girls before their next cookie day.

Holloway is distraught over the accident, daughter Linda Mortenson said. "She has a perfect driving record," Mortenson said.

Holloway, along with her family, is praying for Hoffman and Anne, Mortenson said.

(Staff writer Sarah Ovaska contributed to this report.)