Willard Brigham Richards, a cousin of George F. Richards, was born on 25 January 1847 in Winter Quarters to Willard Richards and Sarah Longstroth, the sister of Nanny Longstroth. When Sarah died in 1858, Nanny raised Willard Brigham, as well as his siblings Joseph Smith Richards and Sarah Ellen Richards. Willard married Harriet Ann (Annie) Fairbanks Doremus on 22 August 1877 in Salt Lake City, Utah Territory. After Harriet Ann’s death, he married Mary Louisa (Louie) Snelgrove on 5 June 1889 in Salt Lake City. He died 30 May 1942 in Salt Lake City.
 Minerva E. Richards Knowlton, “Sketch of My Mother’s Life,” 4, typescript, 1930, FHL; “Willard B. Richards, Pioneer Utahn, Dies,” Deseret News, 1 June 1942, ; Claude Richards and Barbara E. Comer, History of Willard Brigham Richards (n.p., 1981), 58, 66, 114.