For folks here in Minnesota, if this kind of kindness appeals to you, we have a local org that does this same work and is a great org to support if you have the means:
bittykittybrigade.org
That's how I learned of her work — feeding, providing medical care, and doing something called "trap and release," where feral cats get neutered or spayed to help keep the population down. Recently, she rescued these kittens, but can't find them a home.