Wasn't going to comment since to OP was regarding standard, but now...
Hope TangoTime comments on early forms of rumba which date from the 30s in the US. "Smooth swing" in Los Angeles dates from the early 40s, and may or may not be WCS.
And, WCS ideally has an "away pressure" at the conclusion of an anchor step, followed by the "pull" of movement from the man's "center" immediately following the anchor.
Let's just say, I'd think not, since one of the first written descriptions of Western Swing/West Coast Swing is dated 1953 (although that is listed as "revised" the earlier one has no date.)WCS which gave (I suppose) the form of dancing in slots
Hope TangoTime comments on early forms of rumba which date from the 30s in the US. "Smooth swing" in Los Angeles dates from the early 40s, and may or may not be WCS.
And, WCS ideally has an "away pressure" at the conclusion of an anchor step, followed by the "pull" of movement from the man's "center" immediately following the anchor.