With the clue that he was living in Seattle, I was able to locate a couple of death notices published in the Seattle Daily Times on Feb. 24 and Feb. 26, 1937. I knew that Daniel was born around 1860, so this fits that he was 76 years of age in early 1937. With this new information, I hope to be able to verify that this is the correct Daniel and find some details on his life in Seattle.
Sparks, Daniel-- Route 9, Box 735, 76. February 24.
From FindAGrave, Daniel Sparks is buried in Mount Pleasant Cemetery in Seattle, King County, Washington.