What was the maiden name of Lizzie's mother? I haven't found Lizzie's death, and her mother's maiden name might help.
Lizzie's parents must be David and Mary Thies in Waterloo, Allamakee County, Iowa in 1870, 1880, 1885 (daughter Elizabeth born about 1878). By 1900 they are in Shaokatan, Lincoln, Minnesota, where Lizzie got married (first or second husband, I forget).
1900 Shaokatan, Lincoln, Minnesota Daniel Thies 62 Mary M 53 Louis 34 Anna E 19 Emma S 17 Rosa S 15 Frank W 12 Roy C 11
1910 Shaokatan, Lincoln, Minnesota Daniel Thies 71 [suggested correction made to 76] Ray 21
Daniel Thies died 7 Mar 1914 in Hennepin County, Minnesota