The Life of Nancy by Sarah Orne Jewett

The stage was not full inside. The group before the store proved to be made up of spectators, except one man, who climbed at once to a vacant seat by the driver. Inside there was only one person, after two passengers got out, and she preferred to sit with her back to the horses, so that Mrs. Flagg and Miss Pickett settled themselves comfortably in the coveted corners of the back seat. At first they took no notice of their companion, and spoke to each other in low tones, but presently something attracted the attention of all three and engaged them in conversation.

"I never was over this road before," said the stranger. "I s'pose you ladies are well acquainted all along."