Kat again here...I too, found that SS Death Index record the other day for a Norma J Sutton, born Feb 21, 1934 - died Dec 16, 2009 in Seattle...if you look further, you see that someone has her attached to their private tree, and that she was Norma JEAN Sutton, and was born in CA; so maybe that's not your Norma JANE....??
I did however, find a City Directory listing for the 1991-93 timespan for a Norma J Sutton, born Feb 21, 1934, living on River Road in Junction City, OR. There's a phone number listed there too, but hey, that was 10 years ago also, so.... but I bet that's her, as it lines up with what's in your grandfather's 1991 obit.
You said, "I must be doing something wrong as I can not find anything." Noooooo, not necessarily. First of all, every marriage record for every marriage in the US is NOT online, not even here at Ancestry.
Second, their married names at the time of their father's 1991 death/obit aren't necessarily their first and only married names either....they may have been married & divorced/widowed and remarried again before his 1991 death.
Norma would have been about 57 years old when her Dad died; she could have been on a 2nd or 3rd marriage - maybe not. Maybe Sutton was her one and only marriage. Plus, you don't yet know where they married....CA, OR, WA, AZ, or eloped & honeymooned in another state/country all together.... I have ancestors that married in states they were not living in, a few went to Canada to get married, and one was living in CA but they went to Vegas to marry.
There's also an address/phone number here for a Norma & HG (Bill) Sutton living in Eugene, OR, for the 1995-2002 timespan, but no birth date info included to prove that it's her. [Under US Phone and Address Directories 1993-2002]
More later, gotta run,