According to my gg-grandfather's obit, his son, Francis Cook was living in Woonsocket, Dakotas. I have found this is now included in Sanborn Co. He was married to a Nellie who was a teacher. Francis died in 1899 and is buried in the Eventide Cemetery. I found that his two children, March and Cleon graduated from Woonsocket High School, March in 1915 and Cleon in 1910. Would like to find out what happened to them and their mother's maiden name.