Hi there Charles and welcome to the forums!
Unfortunately, the view files are the ones that can be overridden in your theme directory. However, you might be interested in checking out this snippet, which helps alter the calendar title. It contains a lot of different instances and conditions, but you should be able to play around with it to meet the specific conditions you are looking for. You can drop that directly in your functions.php file without having to touch any core or view template files. 🙂
Does that make sense? Will that work for you? Please let me know.
Cheers!
Geoff