Via The Way of Improvement Leads Home, this post on the blog of the Massachusetts Historical Society describes egg production and marketing from an early 20th century farm. The big take-away is the "egg famine"--no eggs in winter, an abundance in summer. These days of course we turn on the electric lights in winter so no more egg famines, when the price of eggs hits $15 a dozen (inflation adjusted).
We were using electric lights back in the 40's. My mother recalled with rare bitterness that neighbors thought they were a signal to Germans to bomb (my maternal grandparents were German immigrants)--an example of the sort of popular panic and ignorance we've never outgrown.