I read this as a publishers' ARC.
The book is an exposé of Billy Bishop's family written by his grandaughter, Diana Bishop apparently as a memoire/catharsis.
Behind the hero's life and descendants lurk shadows and dysfunction. The author tells it all while defending the WW1 flying ace's exploits. The shadows reach her and certainly affect her adversely. She overcomes most of it by the time the book ends after caring for her father who has severe dementia.
Diana Bishop has a long and successful journalistic career and that makes the reading easy. There is some unnecessary repetition in case the reader has forgotten what went before, but otherwise the story flows, and the reader certainly engages and sympathizes with her.
I learned much about Billy Bishop that I didn't know and it made the book a worthwhile read for me.
Recommended for military history buffs and those that enjoy memoir.