Letter Carrier Roger Jones was making deliveries one day last year in Oshkosh, WI, when he grew concerned that an older customer had not retrieved her mail as usual.
Jones alerted a neighbor, who checked on the woman and saw that she was lying on the floor inside her home.
Finding every door locked, the neighbor called 911.
Emergency responders soon arrived to rescue the woman, who had been stranded with injuries sustained in a fall more than 24 hours earlier.
She recovered from the incident, following a long hospitalization.