How was he earning income from his grandchildren? Welfare benefits? Selling them in black market adoptions?
There was a thread here a while back about a 14-year-old Amish girl who showed up at a hospital, IIRC in Wisconsin, in labor, and she was unable to name the father because the boys and men in her community had pretty much passed her around for as long as she could remember. Another Sleuther said, "I am just sick! I didn't know the Amish were even capable of knowing that people do things like this to each other." I, and some other people, said that they're really no different from "us."