When Bertha Mathilda Petrie was born on 17 April 1893, in Moon Run, Kennedy Township, Allegheny, Pennsylvania, United States, her father, Henry J Petrie, was 26 and her mother, Arminta R. Gaible, was 21. She married Luther Martin Keck on 11 December 1907, in Mahoning, Ohio, United States. She lived in Coraopolis, Allegheny, Pennsylvania, United States in 1935 and Pulaski Township, Beaver, Pennsylvania, United States in 1940. She died on 24 December 1963, in North Sewickley, Franklin Township, Beaver, Pennsylvania, United States, at the age of 70, and was buried in Rochester, Beaver, Pennsylvania, United States.