HUBBARD, Ohio - The Hubbard Police Detective trying to solve the cold case of a woman whose been missing for 45 years tells 21 News that recent efforts to find clues in Pennsylvania did not turn up any evidence contributing to his investigation.

Detective Michael Banic said that excavation efforts have concluded on property in Farrell in connection with the disappearance of Billie Lynn Groff in 1977. Heavy equipment was used over the past few weeks to dig up property with the consent of the landowner.

However, Banic said he “doesn’t give up”, and will continue to pursue the case.

Groff, who was 26 years old at the time of her disappearance, would be 71 years old now.

According to the Ohio Attorney General’s office, Groff was last seen by her husband on July 4, 1977, near Westview Avenue in Hubbard.

Police were told that Groff was speaking with a friend by telephone the same evening at about 10:00 PM, when she abruptly ended the conversation, stating “They are coming up the driveway, I have to go".

 It is unknown whom she meant by "they." Her husband and two children were attending the city's July 4 celebration at the time and returned about 11:00 p.m. Her husband filed a missing person report two days later. She left all of her belongings and clothing behind.

Anyone with additional information or questions regarding this case should contact Hubbard Police Department at (330) 534-8153.