Trivia: Star Michael Landon was born 100 years after the real Charles Ingalls. Ingalls born 1836 and Landon born 1936. Lindsay/Sidney Greenbush (who played Carrie) was born 100 years after the real Carrie. Carrie in 1870 and the Greenbush twins in 1970.
Trivia: In the opening credits, the three girls are shown running down a hill that has several flowers growing on it. In reality, the flowers were fakes, and Melissa Sue Anderson (Mary) tripped over one of the fakes during one take and gave herself whiplash.
Trivia: No cast member has appeared in every episode (rare in TV shows).