I'm not sure why you posted in Marathon County - did they have some connection there?
It looks like they ended up in Washington State. You can search for death, marriage and other records at the digital archives here.http://www.digitalarchives.wa.gov/Home
George Bernash died in 1929 in Clark County. It said his father's name was Peter Bernash.
Josephine remarried in 1932 to Xavier St. Jaques. It looks like she died not long after. Her father's name is listed as John Young, but her French surname could be translated loosely that way.
I didn't find a marriage for them yet, but there are marriages at that site for some of their children.