I suspect these are all children of Samuel Heavner(b.1805) and Mary. They had 12 children listed on his 1840 census, but in 1850, Samuel and wife Mary are living with Spinks family, with only one child. I have been trying to identify the names of all his children.
I do not think any of these Heavner children could be from his brothers, since both brothers (Jacob and John) had moved to Illinois before 1840. Samuel Heavner(1805) and his father Christopher Heavner(1749) appear to be the only remaining HEAVNER adult males in Warren county by 1840.
Samuel Heavner with wife and 12 children, were living with his father Christopher on 1840 census. Christopher died about 1844. I am wondering if something happened to the estate after his father died, that maybe left Samuel and all these children without a home.