If you never marry and your sister writes a series of books about her childhood that are eventually turned into a television series, know that this means writers and producers of said television series will just make sh*t up about you to keep the story line interesting.
After struggling through some insecurity and tension when her husband has an accident and miraculously regains his sight (the sight he lost in an earlier accident - dude was apparently very careless), Mary Ingalls suffers a miscarriage followed by giving birth to a baby who winds up dying in a fire that Mary’s brother accidentally starts.
In real life, Mary never married so all that stuff about her marriage and kids was totally made up just so the television writers could f*ck with her character. I mean, seriously, it’s not bad enough that the character goes blind (which did happen in real life) but you gotta fictionalize the poor girl losing two kids?
And this was considered wholesome, family TV programming. Welcome to the 1970s. Say what you want about 80s fashion, but it had nothing on the weirdness that was 70s entertainment.