I was sourcing an ancestor who was born in Oklahoma (if I recall correctly), but several lines up on the census, a neighbor was born in Austria. All the rest of the lines, for several pages were ditto'ed ( ' ' ), so for several pages, everyone was transcribed as having been born in Austria (which might have been actually plausible for many in the neighborhood)
I don't find it funny, so much as sad -- at both the inaccuracies of the census taker and the common sense of the transcriber (if not machine transcribed)