Undersheriff To McDaniels of Arapahoe Country said he was awaiting a report from Philadelphia hostpital authorities on Mrs. Marilyn Lancaster, petite 21-year-old strawberry blond who left her Byers home and dropped from sight.

Mrs. Lancaster's description allied closely with that of the girl whose nude, battered body was found April 8 in Boulder Cañon, eight miles west of Boulder.

McDaniels searched the missing girl's effects sunday. Among them he found a transfer record from a Philadelphia hospital, telling Mrs. Lancaster to report Nov. 21, 1952, at a post-operative clinic.

The Boulder victim had never had the operatio indicated in Mrs. Lancaster's medical record, McDaniels said. He was awaiting word from medical authoritites in the Pennsylvania city to confirm the operation.

Meanwhile Colorado sheriffs officers and police continued their search for the missing Mrs. Lancaster. Even though she may not have been the Boulder victim, they cited two facts to back up their theories of foul play.

1. She left behind her in Byers valuable material possessions, such as a car and her clothes and a housefull of pets - dog, cat, three rabbits, and two parakeets.

2. A telephone communicant in Amarillo, Tex., sounded surprised and shocked to learn she had not reached her Byers home, though she had left Amarillo.

Mrs. Lancaster arrived in Byers about eight months ago with two men whom she identified as her husband, Charles Lancaster, and her brother, Charles Robbins.

McDaniels said she received frequent phone calls from a man named Hudspeth in Amarillo and got a monthly $30 allotment check under the name of Marilyn Hudspeth.

She worked in a Byers grocery store. Her husband worked on a railroad, then in Kit Carson oil fields, before leaving for Philadelphia about two months ago. The brother stayed in Byers but a few weeks before moving on.

Mrs. Lancaster left Byers on March 6.