From Wikipedia...
Hillary Diane Rodham was born at Edgewater Hospital in Chicago, Illinois,[1] and was raised in a Methodist family[2] first in Chicago, and then from when Hillary was three on, in suburban Park Ridge, Illinois.
Park Ridge back then was, per others, very white middle-class; not an area likely to harbor or need illegal migrant workers.
More info at Wikipedia...
Belated thanks for info on Hillary. Based on the area where she was living at the time - an affluent, white middle-class Chicago suburb - the probability of her babysitting for the children of migrant workers seems improbable, if not impossible. Sounds like another of Hillary’s whoppers.