Hi Sharon, A Mathias Herman died 5 Oct 1936, Lane Co., Spouse=Anna per death cert #473. Source: Oregon Death Index 1903-98, www.ancestry.com.
That's all I found for Annie or Herman.
However, you can request a copy of Anna's obituary from the Oregon Library System, http://www.oregonlibraries.net/http://www.oregonlibraries.net/ . Ask them which Library in Linn Co. provides an obituary service.