Found Child - S7-E7
Factual error: The episode opens with Hoss discovering a wrecked wagon with three dead adults. He spots a Raggety Ann doll and realises that a child may be nearby. Raggety Ann dolls weren't invented until 1915, at least 48 years after the shows time frame.
Ride the Wind: Part 1 - S7-E17
Factual error: "Bonanza" is set in the 1860s and the Pony Express mail service operated from 1860 to 1861. In this episode, Curtis Wade and his partner set up a Pony Express office in Virginia City and begin hiring riders. Wade tells them that the job will not be easy, adding, "I won't be giving you sweet cakes and cotton candy." Cotton candy, originally called "Fairy Floss," was invented in 1897 by William Morrison and John Wharton.
The Unwritten Commandment - S7-E28
Factual error: Wayne Newton sang "Scarlet Ribbons." "Scarlet Ribbons" wasn't written until 1949. The TV show Bonanza was set in the 1860s.
