Well, let's post this 1930 census that you mentioned you have! Do you think it might help if you added more identifying info or records...?
1930 Racine, Racine, Wisconsin John Hansen 41 b Wisconsin Sophia Hansen 38 Wisconsin Jeannette Hansen 14 Wisconsin Russell Hansen 10 Wisconsin
Now here's another "candidate" for Russell:
1940 Dayton Town, Waupaca, Wisconsin, United States Russal E Hanson 20 b Wisconsin Dorght M Hanson 19 Wisconsin Residence in 1935: Rural Waupaca, Wisconsin
OBIT: a son of the late Russell and Dorothy (Petersen) Hansen http://www.hollyfuneralhome.com/memorial/html/view3.php?ObitIdNo=2109http://www.hollyfuneralhome.com/memorial/html/view3.php?ObitIdNo=2109 David R. Hanson, age 71, of Saxeville, WI, passed away on Monday, February 20th, 2012 at his residence. He was born in Pine River, WI, on June 29, 1940, a son of the late Russell and Dorothy (Petersen) Hansen. David married Karen J. Winters on April 29, 1967 in Waupaca. Survivors include his Wife: Karen Hanson, Wild Rose, WI; Sons: Mark (Holly) Hanson, Wild Rose, WI; Scott Hanson, Wild Rose, WI; Todd (Angela) Hanson, Manawa, WI; Grandchildren: Cassie Immel; Taylor Hanson; Levi Hanson; Emma Hanson; Lauren Hanson; Gracie Hanson; Lexi Hanson; Brothers: Ronald (Connie) Hansen, Wild Rose, WI; Roger (Juliann) Hansen, Mukwonago, WI; Sister: Carol (Ted) Hakala, Weyerhaueser, WI; Brother-in-law: Kent Winters, York, ME; Kyle Winters, Waupaca, WI. Beside his parents, he was also preceded in death by his father-in-law and mother-in-law - Harold and Carol June Winters and a brother-in-law - Keith Winters.