I checked the Pierce County Herald and did not see an obituary.
She is Buried in St. John's Catholic Cemetery in Union Township, along with her husband Joseph and son Thomas.
Joseph 1872-1956 Father
Mary 1876-1939 Mother
Thomas 1916-1938 Son
There are also two other people you might be interested in also buried there.
Peter Leuter 29 Nov 1837 - 3 Mar 1914
Anna M. Leuter 1846-1935
Hope this helps.