The word hero or heroine is easily used these days. There are a few people who actually earned it. Violet Jessop was a heroine; she didn't do any great deeds; she didn't show bravery on the battle field; she just got on with her life. And that life was quite astonishing even if she herself didn't think much about it. We are lucky she was induced to write down her memoirs for us to enjoy and marvel at.
William Shawcross wrote a biography about Queen Mum. If you remember him as an avid journalist and keen observer, then this book is not for you. This is an eulogy and could have been produced in this form by any well instructed and paid for ghost writer.