I live in Rancho Cucamonga so this Jane Doe was extremely fascinating to me since I've seen these streets before since I've here for 3/4ths of my life never knowing someone was discovered here but I have a guess that RCJD may or may not be Wendy Susan Byron.
https://www.findthemissing.org/en/cases/17621/0/
They were both of different heights and weights but RCJD and they both had different eye colors but something about this still doesn't feel right. Byron's was last seen in Glendora with is another neighboring town of Rancho Cucamonga and she was last seen on August 26, 1978. She left her car abandoned at the Ontario Airport which is our closest airport (I live like 20 minutes away) and it's not too far from where RCJD was found despite the month gap. The fact that they were so close together seemed a little too good to be true. Byron also had a fight with her husband who at first claimed that Byron moved to Ohio under a new name to her sister Wendy and was never found again. Another thing is the teeth. RCJD obviously didn't have perfect teeth and from this picture neither did Byron, however her dental records aren't available. Byron wasn't included from RCJD's namus exclusion list, and despite a few differences on their height,weight, and eye color it was still really fun reading and trying to figure it out. If it weren't for this case I wouldn't have made an account, but hopefully someone figures out the identity of ms RCJD soon.