I believe this is your Lilly M. Server. They are also in 1910,1920, & 1930 Census , all Clay Co. IN. Correct spelling appears to be Stilwagen.
1900 United States Federal Census about Lily M Stillwagon Name: Lily M Stillwagon Home in 1900: Harrison, Clay, Indiana [Clay City, Clay, Indiana] Age: 36 Birth Date: May 1864 Birthplace: Indiana Race: White Gender: Female Relationship to head-of-house: Wife Father's Birthplace: Kentucky Mother's Birthplace: Indiana Mother: number of living children: 3 Mother: How many children: 5 Spouse's Name: Thomas B Stillwagon Marriage year: 1893 Marital Status: Married Years married: 7 Occupation: View on Image Neighbors: View others on page Household Members: Name Age Thomas B Stillwagon 44 Lily M Stillwagon 36 James A Connely 18 Sener A Connely 12 Fostina M Or Foslina M Stillwagon