I would think, in this case the same as we use the term today. Whereas son in law and daughter in law can mean son by law, daughter by law---these are actually step children to the head of household. Hope that helps. Sheila ----- > What could the other meaning of this term mean on a census besides the > mother of the wife of the household. I would be very grateful for any > info. Thank > you > Wendy > > >