This is my first time ever posting on Websleuths, despite reading for years. Hope I'm doing this right!
Just wanted to throw a few ideas out there.
Deanna may have left voluntarily for any number of reasons but IMO it's fairly safe to say that IF she left of her own accord, she had assistance and/or company. If she had a boyfriend at the time, especially an older boyfriend, he would seem to be a likely companion. With the military base (I believe?) right there, it might be helpful to look into any young men who left the base or went AWOL around the time Dianna went missing. Also--were there any runaways from the area around that time either?
My theory is that whether Dianna left with a boyfriend (one of the men in the car?) or not, she may have been/become involved with someone abusive. An abuser may alienate their partner from family, encourage dependence from their partner and be controlling and violent. If it was Dianna who called in 1992 (IIRC) that may have been her first opportunity to contact her family, and she may have hung up out of fear of rejection from her family or fear that the abuser would find out. She may have also just lost the opportunity to make the phone call.
A domestic situation, in which no charges would be filed against Dianna, would be another reason the police in Hurst would have run her name through their system. It's weird that there wouldn't be an incident report, but if there weren't any charges filed it's possible that things weren't done as they should have been or got lost. I would definitely be curious what other names (if any) were run around the same time, or if there is an incident/arrest that may correspond (accident she may have witnessed, assault charges, etc.). Also--is it possible that the police ran her name to determine her age? Or if someone (Deanna or other) called and requested that the police run her name for records or another reason? Did the police definitely see someone claiming that name, or was it just run through the system (possibly without Dianna's physical presence)?
If Dianna has been abused, she may feel that her family doesn't or wouldn't want her. She may also feel that if she tracked down her family, she would be putting herself or them in harm's way. As far as the "why doesn't she google herself?" question: maybe she doesn't have access to a computer and/or has no idea that searching for herself online could lead her to her family. Maybe she flat out doesn't believe anyone could be looking for her.
One last thing to add to my novel:
http://www.ssa.gov/pubs/10093.html
Hope the link works. I don't think it would have been difficult for Dianna to get a new SSN if abuse was involved. She could have forged documents (birth cert., etc.), showed some kind of adequate alternative ID (there are many options, and who knows how stringent these regulations were 10-15 years ago), the police blip in 1995 could have been related to confirming her identity in some way for the SSA, or someone could have just taken pity on a young abuse victim and fudged the documents so she could get a new SSN. Perhaps Sgt. D could contact the SSA in/around Hurst and track anyone who received a new SSN shortly after Oct 1995.
Everyone's ideas and input have been really amazing in this case, and it really is inspiring how far you've come toward finding Deanna in just a few years. Missie, you and ALL of your sisters are in my prayers!
