Find a Grave gives her death date which is not on the marker.
Erna Klaproad in the U.S., Find A Grave Index, 1600s-Current
Name: Erna Klaproad
Birth Date: 3 Jul 1920
Death Date: 3 Feb 2005
Cemetery: Live Oak Memorial Park
Burial or Cremation Place: Monrovia, Los Angeles County, California, USA