Researching history is like detective work. Information you need is not always easy to locate and you may not even know where to start looking. Some is hidden in books which may (or not) be available in local libraries. Other is in the files of various history oriented organizations or government offices. Fortunately, much information is now accessible on the internet but even there, serious detective work is needed. New search tools like perplexity.ai can make the hunt much easier and can even help to present your findings in a useful format. As I find helpful sources, I will put files in the Site's Google Drive as shown below. If you find good sources, please let me know. (historictucson@gmail.com)