You've found your ancestors in the 1850 census, but there appear to be gaps in the ages of the children. It is possible that some died and it's possible that some are living with neighbors or other family members, perhaps helping out with children, farm work, etc.
It is also possible that great-great-great-grandma didn't have any children between Henry in 1832 and Sarah in 1840, but there might have been ones in between that are either deceased or just are not in the household.
