Parnell immediately stopped to check on the toddler, who was crying and said she was lost.
The Postal Service employee called 911 and comforted the child until the sheriff arrived on the scene.
Her parents were located in their home over a mile away. Each thought the other was looking after her, and she was reunited with them.
“I am very grateful that Robert found this child and that she is safe,” said David Dopler, the local postmaster.
“I just did what I thought was right,” Parnell said.