Well it's a film taken from the BFI. The original film can be found here, along with further info:
https://player.bfi.org.uk/free/film/watch-rotherham-town-v-thornhill-1902-1902-online
Unsure. Apparently this was the photo used on the front of Time magazine and also The Sunday Times. I had a little look to see whether it was Nagasaki, but that dropped at 11:02am.
I'm going to assume you're joking, but if not, I wish you best of luck in finding your mum. They're awful conditions to live with, both as a sufferer and those related to them.