When you post, it is important to provide basic search criteria. What was your father's name, when was he born, where was he born? What additional information do you have on him? Who was his wife, her parents, etc. There might not be ANY information on him in the State of Washington.
The Washington Death Index identifies that Carl Coggins died on 13 March 1981 in Mt Vernon, was born about 1917.
The Social Security Death Index identifies he was born 20 May 1916, "last residence:" Concrete, Skagit County, WA. The "last residence" on the SSDI is NOT necessarily where a person actually lived or died. Concrete is a very small town. Originally named Cement for the Portland Cement Mill.
The US Dept of Veteran Affairs identifies Carl born 20 MAY 1916, died 13 March 1981, was in the US Army from 16 July 1941 to 23 Oct 1945.
There are a number of family trees containing Carl. He was born 20 May 1916 in Cocke County, Tennessee to Malcom Coggins and Sarah Mirinda Messer. In the 1920 Census he was in Hartford, Cocke Co, TN. In 1930, in District 30, Cocke County. He was married twice. One to Allie Mae Stokely born 10 Feb 1923 in Cocke Co, died 4 Aug 2006 in Newport, Cocke Co, TN. None of the trees identify children except by "private" indicating they may still be living.
One source "indicates" he married a Helen Mouisdale on 28 Feb 1948 in Elkton, Maryland.
Very little is known about Carl after the 1930 US Census. There is no information on ANY children. His obituary "might" identify information on his family; but based on the limited amount of information, there might not be an obituary.