I have more good news today.
The publication of the Walt's People book series began in 2004. This is an ongoing series, which, at the time of this writing, is already thousands of pages long. An index was sorely needed.
It took close to fourteen years for a good solution to be found. Thanks to Harald Nast and the DIX project we are finally able to search all volumes in the series. This tool is one that I had been wishing for since the series was launched. I encourage you to start your search. Welcome to the wonderful world of Walt's People!