No a female reporter that learns where to pull that stunt by sitting on his clothes at some portion of a river does not mean that he was exposing himself to women and children,if you can show that he exposed himself to women and children then show me the source.
LBJ in a private pool, out of the public eye? a female reporter? You’ll have to do better than that to justify men exposing themselves to women and children.
Whose trying to justify it? Just saying that some historical figures went nude in public/semi private places.