In some free moments today, I went exploring in the 1941-1948 San Diego City Directories recently added on http://www.ancestry.com/.
I input my father's name, expecting to see entries for each year. Nope. I input my mother's name and expected to see every year. Nope. They were in the 1943-1945 set, but not any others. Hmmm, what's happening here?
You can see what is in each collection by following the links at the top of the Ancestry.com screen. Here is the screen shot for U.S > City Directories > California > San Diego:
It looks like there are directories for 1941-1942, 1943-1945, and 1945-1948. I clicked on the 1941-1942 link, and the first image is:
This Image #1 is page 1230 of the 1941 San Diego City Directory. It is the middle of the Business pages. After these pages come the other county city listings. The last image in this 1941 directory is #215 (I think).
Image #216 is page 5 of the 1942 San Diego City Directory:
The pages up to the last image in this Image Set contain the entire San Diego City Directory (but not the other cities in the county). The last image in this Image Set is #1368, which is page 1198 of the 1942 City Directory - the S listing of street addresses:
Where are the rest of the Street lists and the listings for the other county cities? I went back and clicked on the 1943-1945 set. The first image was of page 881 of the 1943 San Diego City Directory:
Image #1 is the T surname listings of the 1943 San Diego City listings. The 1943 directory ends at Image #899.
Why can't an entire City Directory be included in one Image Set? In other words - start with the front cover and end with the back cover, and include all pages in between? None of the San Diego directories I looked at had a front cover or back cover filmed, and didn't have some of the front pages either. This is incomprehensible to me - but then I'm an engineer who tries to think logically and to figure out "how would I do this?"