This grave is not a duplicate.
Buel has 2 gravesites. This one by his last wife Martha Marian in Sun City and Memorial# 70595354 in Round Grove Cemetery, Lawrence County, Missouri by his 2nd wife Clara and his parents.

United States Census, 1920, Lincoln, Lawrence, Missouri
Will A Richardson Head M 38 Missouri
Lenora Richardson Wife F 26 Missouri
Richardson Daughter F 7 Oklahoma
Claud J Richardson Son M 6 Oklahoma
Glenn H Richardson Son M 4 Oklahoma
Buewell H Richardson Son M 3 Oklahoma
Iva L Richardson Daughter F 0 Oklahoma

United States Census, 1930, Lincoln, Lawrence, Missouri
William A Richardson Head M 50 Missouri
Jewell M Richardson Daughter F 17 Oklahoma
Claud J Richardson Son M 16 Oklahoma
Glen H Richardson Son M 15 Oklahoma
Buel H Richardson Son M 13 Oklahoma
Iva L Richardson Daughter F 10 Missouri
Hazel A Richardson Daughter F 7 Missouri
Dony O Richardson Son M 3 Missouri


United States Census, 1940, Nevada Judicial Township, Nevada, California
Claud Winney Head M 53 Nebraska
Belle Winney Wife F 53 Missouri
Helen Winney Daughter F 20 California
Florence Winney Daughter F 17 Iowa
Roy Winney Grandson M 2 California
Buel Richardson Lodger M 23 Missouri (Oklahoma)

Buel was a gold miner at the Empire mine in Grass Valley, California living with Claude and Bell Winney, 1940 in Nevada City, California. He married their daughter Helen and adopted her son Roy. Buel and Helen for a time were living in Ouray, Colorado where he also worked as a gold miner at 12000 feet up. Buel and Helen were divorced soon after World War 2. Buel remarried Clara Akins.
After the death of Clara, Buel moved to Sun City, Arizona in 1991 were he remarried a 3rd time to a lady from Kansas.

Buel is most likely buried in this grave.