We don't know what Mrs Reid looked like!
No!
We that older woman with white scarf nearly arm in arm with Mr Campbell, the man with the black hat and the dark suit , on the Elm St. curb as seen in the pan of Wiegman film, fits the testimony of Mr Reid having stood together with Mr Campell.
If the Couch film is a not a composite, and did not start at 6 to 7 second post last shot, then explain Weigman in the background of Couch film on the Grassy Knoll, who is seen momentarily standing and not moving as though he is still running his camera, filming Pergola, and then he turns around and walks towards the Newmans.
If Wiegman had cut his film at 15 secs post last shot, which is the 30 sec mark in his film, since he heard the last shot fired approx 15 seconds into his film either right AT he stepped off the car, or even possibly AS HE WAS RUNNING towards the GK.