Boulder county authorities expressed belief today that Mrs. Grace Shore, 50, was mistaken in her identification of the body which was found nude and battered beside Boulder creek on April 8.

The officials have no doubt, however, that Mrs. Shore is sincere in her belief that the victim was her daughter, by a former marriage, Miss Barbara Ellen Cosner, whom she last saw in 1950. Her last known address was Toledo, Ohio.

George W. Howe, mortician and coroner, said he will not accept the $94.95 check and it will be returned to Mrs. Shore. Meanwhile the sheriff's office is trying to trace Miss Cosner.

23 YEARS OLD
Miss Cosner would have been 23 years old on March 19 of this year. A Boulder dentist who took X-rays of the slaying victim's teeth fixed her age at 19. A pathologist who conducted the autopsy said the victim was between 19 and 20 years old. One of the few marks of identification on the body, ravaged by time and birds or animals, was an appendectomy scar. Mrs. Shore said she did not know Barbara had had her appendix removed but it could have been done without the mother's knowledge.

Mrs. Shore, wife of L. J. Shore, of 1738 Pearl St., in Denver, spent an hour viewing the body at Howe's mortuary on the morning of April 23, the day of the funeral and burial. She left before the funeral, telling Goerge Howe that she could not tell whether the body was that of her daughter because there was so little left to identify.

On her visit to Boulder, the woman gave her name as Mrs. Wilson. When Undersheriff D. M. Teegarden asked her about that at her apartment in Denver Friday afternoon, the woman explained she was "confused and undecided at that time and didn't want to get involved."

Later she became convinced that the dead girl was her daughter and she submitted a claim to an Indiana insurance company with which she held a family group policy. The company sent her some forms to be filled out and she forwarded them to Howe's mortuary.

Howe filled in the name of the deceased as "Unidentified Girl" and gave what other information was known.

This week the mortuary received the insurance company's check for $94.95, which Mrs. Shore endorsed to the mortuary. In a letter accompanying the check, she said she wanted to pay for her daughter's burial.

Undersheriff Teegarden, Coroner Howe and a Denver police detective called on Mrs. Shore Friday afternoon.

DAUGHTERS LEFT IN HOME
She said her first husband deserted his family when they were living in Toledo. Mr. and Mrs. Cosner had two children, Barbara, born March 19, 1931, and a younger daughter, Claire. Leaving the girls in a home, Mrs. Cosner moved to Denver in 1946 and sent money for the upkeep of her daughters.

Mrs. Cosner later married L. J. Shore.

Mrs. Shore has papers to show that Claire was made a ward of an Ohio court. The mother understands that Claire later was adopted by a family in Edgerton, Ohio.

The mother said she went to Toledo in 1950 and tried to persuade Barbara to accompany her to Denver. The daughter, who was working as a car hop at a drive-in and living at the Y.W.C.A., declined. Mrs. Shore has not seen or heard from her since.

Mrs. Shore told the Boulder officers that the body of the murder victim was a little larger and heavier than Barbara was when she last saw her but the hair and teeth looked the same. Except for the blond hair, perfect teeth, and appendectomy scar, nothing identifiable was left.