In the Fall of 2010, we had many Alside window sets put in. When Spring came, we opened all but four of the windows 1/4 to 1/2 way. We never fully closed and locked the windows until late July/early August when the hurricane was due to come up the east coast.
Almost everybody in the Iron Age was involved in farm work and that goes for women and children, too. In order to prepare the land people used a special kind of plough, an ard, which was pulled by a couple of oxen. That was probably the men's part of the work. Very few people were actual artisans.
Coming up with how many people were born after that is certainly based on informed speculation. Plagued by low life expectancy (up to 10 years during the Iron Age) thanks to lack of medicine, food supply issues, climate changes, killing each other and other problems, human population grew at a slow rate.