Isreal/Ezra Justice born 1793

Many, if not all, researchers list a son named Ezra/Israel born in 1819 in Kentucky as his oldest son. It is clear from the older census records that he indeed had a son born between 1810 and 1820 and with his marriage happening in 1818, and a daughter already born in 1820, it would make sense that this son was born in 1819. That being said, I do have my doubts as to whether this son was the same Ezra who married Matilda Bishop Keen. Ezra, the younger, is listed as being 20-30 in 1840, which would fit with him being that oldest son, but there is one problem. Ezra was living out on his own in 1840, yet that oldest son of Israel is still living in his home. Also, in 1850 Ezra is listed as as being 45 (which is very clearly written) which would make his birth happening in 1805, which is way off from the 1819 birth year. I could not locate him any following census records, though some researchers site an 1860 record with a new wife, but his age is listed as 50 which would put him in line with the 1840 census but he would still be too old to be Israel's son.

If he is not Israel's son, then where does he belong?  Also, who is that oldest son of Israel if it is not Ezra?

If anyone has any records or documents to help prove the parentage of Ezra, please let me know.