I reread your original posting, and then looked in my phone book and noted a Glenn Danielson living at 15311 Virginia Loop Rd., NE, Poulsbo, WA (360) 779-7378. Since the family lived in Kitsap County at one time, this might be the Glenn that is part of your family.
There is also a Stanley Danielson in the SSDI: STANLEY D DANIELSON05 Dec 1922 12 Dec 1994 98003 (Federal Way, King, WA) (none specified) 536-16-6312 Washington
Federal Way in King County is about an hour's drive from the Kitsap County area. You might request an obituary for him also. Ask a volunteer at www.raogk.org for South King County to do a lookup for you. You might find the sister's married name in the obituary.