The question of whether Beverly Oliver is the Babushka Lady could answer the Malcom Couch movie.
Most versions of the couch movie are not good quality. However, there is a sharpened and very well edited screenshot by Robin Unger (maybe also from Jerry Organ, I'm not sure) from the couch movie where you can at least see the outline of the face.
Here on the left is the side face profile of the Babushka Lady and on the right Beverly Oliver from a scene in the movie Hot Blooded Woman from 1965:
In my opinion, this could be another indication that Beverly Oliver was not the Babushka Lady, as the facial features are not quite right.
I would also like to say that the screenshot of Robin Unger (or maybe Jerry Organ) is one of the best pictures of the face of the Babushka Lady.
The picture is not the holy grail when it comes to identifying the babushka lady, but at least there is a tendency for her look to be based on which to continue working.
This is unfortunately in my attempts to make her face on pictures and videos more difficult unfortunately so far not succeeded.
The issue I find most perplexing with regard to the Couch footage of the South side of Elm St is the Absence of Darnell. Darnell jumped out of Camera Car #3, (same car as Couch filmed this still frame from), before it turned onto/and began traveling down Elm St. Wiegman jumped out of Camera Car #1, (2 cars in front of Camera Car #3), ran down Elm St, went up the knoll, filmed the alleged Hester's, went down the knoll, filmed the Newman Family, stood around the light pole/sidewalk area, and then saw his Camera Car #1 traveling down Elm St TOWARD him. Wiegman, (no kid in his own right), while on foot went up and down the Knoll while also stopping to film people, and STILL managed to end up In Front of his Camera Car #1. Wiegman's Camera Car #1 had Not even reached the Stemmons Sign, (which is only a very short distance down from the corner of Houston/Elm) when Wiegman filmed that Camera Car. Wiegman also filmed Camera Car #3, (Couch's/Darnell's Car), a short distance behind his camera car during this same film sequence. Where-o-where is Darnell, and what was he doing? I believe the Camera Cars and every other vehicle behind them were Stopped for a Longer period of time than has been foisted on the public for 55+ years. We are probably talking about roughly 1 minute of missing time. The reason for this short period of missing time involves the JFK Limo having been captured on the Wiegman Film Not yet having gone under the Triple Underpass when the on foot Wiegman moved down Elm St. This missing time would coincide with a possible JFK Limo Stop and/or an extended rolling stop.