You have been discovering your ancestor in various census information.  All of a sudden, some of the children are not in the family – and the children are too young to be married.  Where are they?

It could be that some of the children are living with a relative.

Maybe the relative needed some help “on the farm” for a while, or maybe the children were visiting a relative on census day.

Don’t assume that the child died – this may be the case, and it may not be!