Indeed. She was "discovered" very late and died of cancer quite young.That's a voice you could get lost in. It's pretty amazing that her international career lasted only about ten years.
Very sad story.
I have been a huge fan all my life. I have most of her recordings, if not all.
I enjoyed this DVD Kathleen Ferrier: An Ordinary Diva [2004] of course back then not much film footage of actual performance.