This is a photo I found in early spring and posted to my personal blog. It's such a great photo that I had to post it here as well.
Although this photo isn't dated, I wager a bet it was taken during the mid to late 1930s. It may potentially be the early 1940s. What is particularly telling about this photograph are the notes on the back of the photo (below) and the fact that once again breastfeeding in public was no big deal before the formula industry changed the perception of infant feeding (almost irreparably) in this country. The men could care less that a woman's exposed breast is in full view of everyone, although the little boy on the right does seem a little enthralled by the baby breastfeeding.
Written Notes on Item
a) Part of Social Hour audience at Shafter Camp (handwritten on reverse); b) Todd's favorite picture of an "Okie Family" in Shafter F.S.A. Camp. Nursing babies was the usual thing at camp "Socials." (typed and attached to reverse)