It looks like the correct Harry Benton Bloodgood was b. 1895 and did d. 1942 in Spink Co.,SD. He was living in 1940 with his sister, Effie Maude (Bloodgood) Walter in Richland,Beadle,SD. His mother was Cora (James) Bloodgood.
He also had a sister Lavancia Langley "Vanche" Bloodgood that was b. 10 Jan 1900 and d. 5 Jun 1983. She is listed on findagrave, bu: Riverside Cemetery in Huron, S.D. So the obits I am looking for are Harry, Lavancia and sister Effie Maude that was married to Earl Raymond Walter. I have found online an obituary for Effie and Earl's son Arland Boyd Walter. He is buried St. Martin Cemetery.
Hope this additional info helps.