I finally added all the rest of links (18 more) to directories from Ancestry to the Orange County, California page. I also added 21 free links to county and telephone directories from the Fullerton Public Library. It took me a loooong time to get this page completed because Ancestry divided up the directories for this county into three parts and I had to check each part to see which communities it contained so I could label the links correctly. I now have only 10 more California counties' directories at Ancestry to link!
I also added a link from the Hathi Trust Digital Library to the King County, Washington page.
I created the Boone County, Missouri page and added a link to it from the Hathi Trust Digital Library. This now makes five counties, plus the City of St. Louis, linked for Missouri.