When Bertha Alta Lewis was born on 28 January 1879, in Madison, Nebraska, United States, her father, Leonard Leland Lewis, was 57 and her mother, Lorinda L Rounds, was 40. She married John Harrison Crook on 1 January 1898. They were the parents of at least 2 sons and 1 daughter. She lived in Bonesteel, Gregory, South Dakota, United States in 1910 and Los Angeles, Los Angeles, California, United States for about 10 years. She died on 23 September 1970, in Rancho Palos Verdes, Los Angeles, California, United States, at the age of 91, and was buried in Green Hills Memorial Park, Rancho Palos Verdes, Los Angeles, California, United States.