She was the 2nd wife of James Martin Hanley, they married about 1945 in Great Falls, MT, at the home of his daughter Josephine Hanley McCormick. She is buried in the Union Mandan Cemetery. They had a son Paul Smith he was 25 years old in the 1940 US census. [1]
The 1930 US census shows her maiden was Thompson. He father Hayden Thompson was living with them
Sources
↑ "United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KM9V-6V6 : accessed 22 April 2016), Mona Smith in household of L G Smith, Ward 5, Mandan, Mandan City, Morton, North Dakota, United States; citing enumeration district (ED) 30-21, sheet 3A, family 35, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 3007.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MC8X-488 : accessed 22 April 2016), Sofhorna E Smith in household of Le Roy G Smith, Medina, Stutsman, North Dakota, United States; citing sheet 11B, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,821,341.
It appears by the 1930 census that her maiden name was Thompson. Her father, Hayden Thompson, was living with them. Please change her Last Name at Birth to Thompson, as I can not. Thank you!