I don't know for sure, but I think much as they are now. You'll have to look it up.
One aspect of the period is the relative absence outside of the Bible Belt of a Moral Majority (or its equivalent in earlier periods) and the sexual revolution permitted by the pill in the areas those songs were coming from.
Speaking from the wrong side of 50, it would also be interesting to see the history of the concept of the Dirty Old Man as a form of ageism. I think there are many Frustrated Old Women as a result!