When my wife and I bought our home in 2014 a kitten showed up in the next spring. It had been wounded and a large abscess on it's abdomen but was friendly right off so I had it tended to and we made it room in the garage. Her son came to live with us for a few years and the kitty that had bonded initially with me gravitated to him and when he left for Florida a couple years ago he took the cat with him.
Spring last year my wife was having fits with chipmunks digging in her potted plants, I bought her a bb gun and she made some inroads but couldn't get them all. Then around may we noticed the pests were disappearing, and with it noticed 2 cats, a grown female and a young juvenile just past weening living under the carport in the back yard. Both were calico, the older short haired, younger longhaired, and assumed they were mother and child.
The older female was wary and the younger so adept at hiding we called her "Hidey".
We started feeding them and some of the wariness subsided, though I eventually had to coax and capture the juvenile to get her used to handling.
We noticed soon after that the older female was in the family way again and gave birth to 4 additional kittens, whom we found homes for. However she has constantly from the beginning tried to chase the younger female off so we're guessing that they're not mother and child but just happened to arrive together.
We had both fixed to prevent any more offspring and my wife has taken to the younger one and allows her in the house. She's convinced she's allergic to the older shorthaired cat so I've made her comfortable in the garage and added an access flap in the window so she can come and go.
The older cat has been very standoffish from the begin, not tolerating picking up and holding. In the past month after a year and half she has finally taken to jumping up in my lap for some petting for a short period of time.
Pictures below of the older female eating with 3 of her kits around and the younger one posed in the yard. I've always been partial to tri color cats as we had one when I was a child.