There is a long thread on Cali Doe here in Websleuths, and in it I suggested a possible match between her and Monica. Unfortunately, NY LE could not make contact with Mexican authorities, even through the FBI, so no comparison could be made.
Note that Monica's height would be aproximately 5 feet 2 inches. She had brown eyes and wavy, chestnut brown hair. There used to be a photo of her on the origional site and she did resemble the Cali sketches somewhat.
Here is the Doenetwork's description (photos at link) of Cali.
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Unidentified White Female
Located on November 9, 1979 in Caledonia, Livingston County, New York.
Estimated Date of Death is November 8, 1979
Died as a result of severe brain hemorrhage caused by a gunshot wound to the head.
Vital Statistics
Estimated age: 13 - 19 years old. Her estimated date of birth is 1958-1967.
Approximate Height and Weight: 5'3; 120 lbs.
Distinguishing Characteristics: She had curly brown, shoulder length hair which had been frosted about four months before her death. The frosted hair was in the process of growing out. She had brown eyes. She was tanned and had visible bikini lines. She had no distinguishing marks. The victim had had no broken bones that would have been in a hospital's records. It didn't look as though she had received much medical attention of any kind.
Clothing: She was wearing a a boy's multi-plaid, button-down shirt, tan corduroy pants, blue knee socks, light blue panties; white exquisite bra; brown lace up, ripple-sole shoes and a red nylon-lined man's windbreaker with black stripes down the arms, marked with the inside label Auto Sports Products, Inc..
Dentals: Available. She has some serious decay and tooth #14 was decayed to the extent that only three roots of the tooth were left. She had not had any dental care.
Fingerprints: Available. Her fingerprints were sent to FBI headquarters, but her prints weren't on file.
DNA: Available in CODIS
Source:
The Doe Network: Case File 1UFNY
LINK:
http://www.doenetwork.org/cases/1ufny.html