I was wondering if they ever figured out who the operator was? I couldn’t find anything about her through my Googling. Seems like she should have some credit in the album for her brilliant contribution
The session singer who did "The Great Gig in the Sky" vocals on The Dark Side of the Moon famously got £30. She later sued and got an undisclosed settlement.
Also on that album of course "There is no dark side of the moon, really. As a matter of fact, it's all dark". Wasn't that just some random studio guy, on the spur of the moment, too? Simpler times, more creativity.
Pink Floyd wrote some questions down on note cards and asked random people in the studio, recording their answer. The Beatles were part of this, but their answers were too guarded and weren't used.
I believe (unable to fully verify) she got a credit in the 2017 album “Is This The Life We Really Want? — Almost 40 years after the release of The Wall”.
https://en.m.wikipedia.org/wiki/Clare_Torry