Boo, Minnow, and Wheezy
I have 3 from your shelter.
First photo is Yvette - pure white - I adopted 03/2017. Her name is now Boo. This cat not a lap cat but absolutely lovely and entertaining. And as soft as silk.
Second photo is Raina - a funny faced tabby I got to be a playmate for Boo - I adopted in 09/2017. Her name is now Minnow - abbreviated from Skinny Minnie - which she was when I got her 6 months ago. But she is a little lover - cuddles with me all the time and loves playing with Boo.
The last photo you called (I think) Danielle. I call her Wheezy as her purr sounds like a wheeze. I adopted her in late 2006. She had been returned to you by adopters as she was for sure ugly to other cats. Per your attendants - she had been delivered to you pregnant and all kittens adopted - and I am guessing her "protective" temperament went to her first adopters. And to me.
But we got that worked out. She has turned out to be just like Minnow - very loving and affectionate.