Children appearing twice in census (General)

by Hurricane999, Friday, November 24, 2017, 16:28 (2343 days ago)

Whilst researching my family tree, I have come across two families who live virtually next door to each other. I'm confused because the same children (my late father's siblings) appear on both censuses with slightly different names and different parents. Is this a common occurrence and do you any clues as to what can be the reason for this?

Apologies for being vague on this.