When Avery Harry Booth was born on 23 September 1891, in Milnor, Sargent, North Dakota, United States, his father, Henry Louis Booth, was 42 and his mother, Ingrid Thompson, was 38. He married Minnie Christina Johnson on 2 August 1928, in Great Falls, Cascade, Montana, United States. They were the parents of at least 1 daughter. He lived in School District 4 Hinsdale Rural, Valley, Montana, United States in 1920. He registered for military service in 1917. He died on 6 November 1979, in Great Falls, Cascade, Montana, United States, at the age of 88, and was buried in Great Falls, Cascade, Montana, United States.