When Stephen Bennonia Richardson was born on 8 November 1902, in Homestead, Blaine, Oklahoma, United States, his father, Frank Demerit Richardson, was 39 and his mother, Elizabeth Jane Stewart, was 32. He married Gladys Viola McCartney on 10 March 1925, in Oberlin, Decatur, Kansas, United States. They were the parents of at least 1 son. He lived in Decatur, Kansas, United States in 1935 and Election District 15 Laramie Peak, Albany, Wyoming, United States in 1940. He died on 12 August 1983, in Oberlin, Decatur, Kansas, United States, at the age of 80.