When William Lucas Armstrong was born on 23 December 1890, in Huntsville, Madison, Alabama, United States, his father, Robert Louis Armstrong, was 40 and his mother, Anna Frances Nimmo, was 33. He married Bessie Agnes Hughes on 27 March 1917, in Madison, Alabama, United States. They were the parents of at least 2 sons and 1 daughter. He lived in Election Precinct 4 Colliers, Madison, Alabama, United States for about 10 years and Justice Precinct 6, Stephens, Texas, United States in 1930. He died on 27 August 1979, in Gurley, Madison, Alabama, United States, at the age of 88, and was buried in Huntsville, Madison, Alabama, United States.