One particular instance was an employee of ours who, was a bit 'challenged' himself. 4 of his kids were fine and wonderful (his teenage boy was a hoot) but 2 little ones had physical and mental disabilities. Quite sad, he wasn't much of a farmer and had little land, and had never made more than 3000 a year in his life. (this was 20 years ago). He'd drive his tractor winter or summer up to 30 miles to wherever we were working.
Many Amish are relocating here from Ohio, which will be good for the gene pool in Lancaster.