I had the same thought. It was very difficult research and probably hard to do. Her parents generation grew up not wanting to talk about it, alluding to it vaguely. I'm sure she had to dig to find what she did. And I think that would be difficult for the hardiest of us.
In the late 60's while travelling in Europe, I read one of those interminable WW II autobiographies by some Brit Gen so-and-so. Seems like every Brit general office wrote his memoires, and 99% of them were awful. This one was also..he was a QM staffer...but the last part of the book described the logistics problems of the Brit unit that liberated one of the camps in Poland. The cold dry stats made it seem even more horrifying..