I have listed Death Date as after 1920 based on the History of Northeast Indiana mentioning that she was still alive, with it having been published in 1920. I suppose, with lags between writing and publication that might not be quite right, but is a best guess based on available info. I guess it could be checked against 1920 census.
Ira Ford Lewis Publishing Company, 1920 - De Kalb County (Ind.) pg. 265
"United States Census, 1900," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MM1V-B9J : 20 January 2015), Christian G Wolf in household of Rosa C Wolf, Lima Township (incl. Howe Military School), LaGrange, Indiana, United States; citing sheet 9A, family 199, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,383.
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