The mother cat and one of the kittens have returned to our porch. We have no idea what happened to the female kitten I called "Rose", but are happy to see the others again.
Since we no longer have any responsibility towards them -- our neighbor having declared them to be his cats -- we can just enjoy their visits.
The male kitten, Trapeze, cuddled up to me when he first saw me and purred with great gusto. I'd never heard him purr before. Mark had named him Trapeze because of the high likelihood of him becoming a "flying young man" due to his tendency to bite. We don't know what has happened to them in the time they've been gone, but he no longer wants to bite, seeming content to play and cuddle. My daughter carried him around for a while today, and he was content.
I enjoy these furry companions and find myself sitting outside and watching them play. There is something soothing about having a cat curled up in my lap, the purring hypnotizing me into resting for a few moments out of these hectic days.
Another update: Rose now resides down the street with a loving family. Trapeze and Tigress were cornered by a gang of raccoons at 2AM the other day. I beat of the evil things with a 2 by 4, several large flower pots, and much yelling. I swear, one of the beasts actually stood up and laughed at me. Nevertheless, I rescued the kitties and have returned them to their rightful owner -- again. We all know they'll be back. There is much discussion around our household about the size and strength of the local raccoon population, as my husband informed me the next day that they were more than capable of overwhelming me. I pointed out that might be so, provided children or cats were not involved.