How was the Ingalls family affected by the US Civil War?

That’s a great thread! I cracked up on seeing this post:

http://boards.straightdope.com/sdmb/showpost.php?p=6551899&postcount=48

There’s something about the series that prevents me from reading it in the cold light of adulthood, though–maybe having had a wonderful devoted dad who in some ways reminded me of Pa but who didn’t mess up.
OTOH my cousin loved the show, I think because Pa/Michael Landon was so different from her cold, absent dad.