The 1920s and 30s saw the publication of a great many magazine articles on domestic spanking and at least one book...
'Correction That Corrects'
Written mostly by educated, middle class women, they all extolled the virtues of knickers down, bare bottomed spanking to correct bad behavior in children. Of course not everybody was convinced by their arguments... Other women wrote passionate anti spanking articles to convince parents not to spank their children, even if they thought spanking would stop their kids behaving like spoiled, out of control brats.
The anti spank loby in the 20s and 30s were, on the whole moderate in their opposition. Not so these days. I've read articles that suggest spanking parents are no better than violent criminals... A high profile celebrity was photographed spanking her daughter and these shots were splashed all over the tabloid media, with on-line comments suggesting the celeb. had no right to discipline her own child.