There are eight vehicles missing from the 1979 test cycle - I unearthed five more during a comprehensive search of the NHTSA database.
I made an error during the original tabulation of the tests in May 2012 and omitted five tests. I had only searched the portion of the 1979 tests that I thought had new car assessment tests (those posted here) as opposed to research tests often conducted on used 1979 cars in the 1980s. Since the new car assessment tests normally had lower test numbers (e.g. 100 instead of 600) I ended my search, omitting some tests that, for one reason or another, got higher numbered tests. The numbering system during those days (13 years before I was born) is something I still have not figured out, other than that earlier tests are typically lower numbered than later tests. This is a general rule, but not always the case. For instance, test 423 was conducted on June 28, 1979, before test 219 (August 27, 1980). As of the post time, I do have results available for six of the eight tests and will be posting them soon.
Both 1980 tests with missing chest data now have that data and are also to be posted shortly.