"Dead positive" is an overstatement, but I agree they look similar. That doesn't back Groden's story one way or the other. Showing somebody a single photo and asking is this person you saw is just as invalid as when the police did it with a single photo of Oswald. If you actually really did talk to Groden at all, this was a badly designed experiment.
There's no evidence of another Mrs. Reid named Delores ever being at the TSBD. And if Groden was waiting until Jeraldean died before telling her story, then why did he wait another 40 years after that? Reid was already dead before the HSCA.
I don't know who "identified" this as being Mrs. Reid, or what the identification was based on:
P.S. Your supposed photogrammetric prowess might be more believable if I didn't have to post all of your photos for you...