According to the Cal Death Index at www.rootsweb.com:
Mr. Orlen Kenneth Howard b. 17 April 1915, male, born in Nebraska, mmn Bruce, d. Humbolt County 02 May 1985 at the age of 70 years old.SS#506-10-1022.You can obtain his death record at www.vitalrec.com.
I tried running Howard females who died in Humboldt County, but there were too many there, with the limited info you provided.Perhaps you should take a look there and might find his wife and her maiden name.
Then you could run the Cal Birth index with her maiden name and his surname to look for births of their children in CA.