Hi. I'm not related to this family.This might be a birth record for Russell:
Cook County, Illinois, Birth Certificates Index, 1871-1922 about Russell C Stewart Name: Russell C Stewart Birth Date: 16 Feb 1912 Ethnicity: American Gender: Male Race: White Father Name: Russell C Stewart Father's Birth Place: Toronto, Canada Father's Age: 31 Mother Name: Hellen Grantin Mother's Birth Place: Reedsburg, Wisconsin Mother's Age: 23 FHL Film Number: 1288241
And his death:
Social Security Death Index about Russell C. Stewart Name: Russell C. Stewart Last Residence: 64030Grandview, Jackson, Missouri, United States of America Born: 16 Feb 1912 Died: 11 Apr 2011 State (Year) SSN issued: Illinois (Before 1951)
In 1920 the family is living in Minnesota.I assume you have that information.Not sure what is your "20 year gap".
In 1930 Russell may have been in the Illinois State Reformatory in Pontiac, Livingston, Illinois:
1930 United States Federal Census about Russell Stewart Name: Russell Stewart Gender: Male Occupation: Tailor Birth Year: abt 1912 (age 18) Birthplace: Illinois Race: White Home in 1930: Pontiac, Livingston, Illinois View Map Marital Status: Single Relation to Head of House: Inmate Father's Birthplace: Canada Mother's Birthplace: Wisconsin
There is an obit for him in the Kansas City Star:
Kansas City Star, The (MO) - Tuesday, April 12, 2011 Deceased Name: RUSSELL C. STEWART, JR. Russell C. Stewart, Jr., 99, passed away April 11, 2011. He leaves his wife, Yvonne Stewart; six step children; thirteen grandchildren; twenty-two great grandchildren; three great-great grandchildren; sister, Betty Lewis. He was a mason and past member of Ararat Shrine. He lived in the Kansas City area most of his life.
Here is a possible marriage for him:
Missouri Marriage Records, 1805-2002 about Russ C Stewart Name: Russ C Stewart Age: 43 Race/Ethnicity: White Birth Date: 16 Feb 1920 Marriage Date: 31 Dec 1963 Marriage Location: Jackson, Kansas City, Missouri Spouse Name: Yvonne F Hodges Spouse Age: 37 Spouse Birth Date: 24 Aug 1926 Spouse Race/Ethnicity: White