She looks similar to Maria Guadalupe Montano
http://www.charleyproject.org/cases/m/montano_maria.html
I considered Montano too and I admit she shares a strong resemblance with the Jane Doe (It wouldn't be the first time Law Enforcement failed to identify a Jane Doe because they guessed her race wrong. Looking at you Jacksonville, North Carolina Police Department). But the circumstances between Montano's disappearance and the Jane Doe's discovery don't seem to match to me.