There is an engagement announcement for Denise in the Daytona Beach Morning Journal, August 31, 1980. Scroll up on the page and there's a pic of her without glasses.
http://tinyurl.com/ye53b2l
http://tinyurl.com/ye53b2l
I do not know if any of the girls you mentioned were compared to the unknown girl found in Baltimore County, MD in 1976. What similarities are you seeing?
Barbara did not have any tat's. The suspected perp in Barbara's case had returned the car to the cars owner the Monday following the Sat she went missing. She is believed to have been killed the evening or early hours of the morning following the night she went missing.
I have spoken with the detective handling Barbara's case, and he strongly believes she was buried somewhere along the Fox River between where she went missing and St. Charles, IL. (or possibly a little further south of St. Charles IL. Of course that does not rule out other possibilities but that is the detectives theory.
IIRC, Barbara's perp left the area and went west, he was found in CA IIRC and there is a witness stating he arrived in CO (prior to heading to CA) alone and on a motorcyle. I do believe he left the area almost immediately after Barbara was missing and was found in CA some months later. No links to provide, this is what I recall from my conversation with the detective handling her case. There was never any mention of Barbara's killer (who is now deceased) who did not have his own vehicle at the time, being anywhere on the east coast. The clothing does not match either.
I did think along those lines too Jules, but after looking further I think we can safely rule Barbara out as being this Jane Doe.
ETA: We know the lawn seed bag was discontinued two years earlier and there is nothing that I am aware of to place the perp in Barbaras case anywhere on the east coast at any time.
also:
IMO, unless the suspected perp in Barbara's case had her hidden away somewhere and alive, this Jane could not be Barbara.
I found a reconstruction of Woodlawn Jane Doe that I didn't see posted yet. Maybe it will be helpful. Sorry it is so big, I haven't figured out how to make it smaller.
http://www.mcac.maryland.gov/resources/MDMissing.html