In unlawful cohabitation, otherwise known as polygamy, there were many problems to work out. For instance, what about holidays? Olaf did the following: If he spent Thanksgiving with Sigrid one year, the next Thanksgiving found him at Linnea's spending the day with her. The same with Easter or New Year's eve. He spent two Pioneer Days straight hand running, however, with Linnea, Sigrid being at home in bed getting over a miscarriage, and although she didn't say boo at the time, on later occasions--even years after--and in fact starting the very next day, she threw it up to him until he wished he had never heard of Pioneer Day or Lagoon or anything else.
--From The Peaceable Kingdom