Angelina L. "Ann" Hughson - Twice in census

Angelina "Ann" and sister Frances Hughson appear to have been counted twice in the 1850 census when their sister Sarah "Sallie" Ellis Hughson had passed away from child birth. They are seen with their parents and then again, I do believe it is them, with their brother-in-law John Nathaniel Hughson and his two children aged 6 and 7

https://www.ancestry.com/discoveryui-content/view/15262439:8054
https://www.ancestry.com/discoveryui-content/view/15256639:8054

Will continue to verify this branch.
I have several ancestors who were enumerated twice. Seems it due to census takers being in different neighborhoods at different times/on different dates. Also, some information is obtained from neighbors/third parties who do not always fully know the answers to the enumerator's questions.