Black and white & Gray and white Cats and kittens

Need a furry friend or barn cats? I have a few cats and kittens that need homes. There are three kittens about 6 months old. I think two are male and the other female. Also available is the mom. She is about 2. Other cats available are about 1 year old, these again I believe are 2 male and one female. They are all little box trained and have been inside their whole lives. Their owner passed and I am helping to find homes. Not sure about vaccinations. Can deliver to Bismarck.