In most versions of "Lady Franklin's Lament", the following lines appear:

   Only the Eskimo in his skin canoe
   Is the only one that ever got through

I once heard someone sing a very interesting but sensible mishearing of the first line, but I'm not sure exactly how the second line was altered to go with it, so I'm making a plausible guess about that second line:

   Only the Eskimo and his kin can know
   The only one who could ever get through