Not that all the records are complete, the FDL Public Library has a newspaper index.... no Hilda, but they do have the following newspaper listings:
Duescher Darlene M. Death 8/12/1991(N)
Duescher Frank Funeral 7/21/1955(N)
Duescher Mathilda Death 5/9/1969(N)
Duescher Mrs. Oscar Death 2/7/1949(N)
Hagemann Elsie B. Death 12/9/1985(E)
Krause Timothy A. Marriage 5/21/1995(N)
Schroeder Marie Death 6/22/1993(N)
Now, there are relatives of Marie who are listed in the Oshkosh Vital records.... but no Hilda.
Now, I was reading an article in Newspaper Archives -
Mrs. O. R. Duescher and children
Lawrence and Harmie. and Miss
Madeline Race of Green Lake and
Miss Florence Duescher of Milwaukee
were guests of Miss Emma Duescher
Appleton Post-Crescent | Appleton, Wisconsin | Wednesday, August 10, 1927 | Page 10
Is Emma a sister?????
I also checked the St. Louis Catholic Parish, Fond du Lac, Wisconsin: Repertoire of Baptisms, Marriages, & Burials - they don't go that far in to the future, so no listing.
Let us know what you find out!