Samuel Casey1 son of Jeremiah M Casey and Nancy was born c. 1770 in Dobbs Co, NC. educated guess.
Samuel was the Head of Household in the census in 1790 in Wayne Co, NC. Jeremiah Casey: 1 male > 16, 3 males < 16, and 4 females, no slaves.2
[S] may be listed in the household of Jeremiah M Casey in the in 1790 census in Wayne Co, NC. : Jeremiah Casey: 1 male > 16 (Jeremiah), 3 males < 16 (?, James, ?); 4 females (Nancy, 3 of the following Mary, Lovey, Elizabeth, Nancy, and Sarah); no slaves. There is at least one unidentified male <16 in this census. If the 2nd unidentified male is Samuel and the census is correct, then Samuel would not have been born before 1775.2,3
On Apr 17, 1810 Samuel. son Sanuel Casey mentioned in Jeremiah Casey's will Type: HEIR.4
In 1812 Samuel Casey owned Samuel Casey acres in the tax list for , Richmond Co, NC.4 Samuel Casey. Samuel. Based on the assumption that Jermiah's children were listed in his will in birth order, Samuel Casey would have been born about 1770 whenJeremiah was about 16 and Nancy about 14-16. James and Lemuel were mentioned as the youngest sons in Jeremiah's will. The approximate age is known for most of Jeremiah's children and it supports the theory that they are listed in order of birth.
Based on census records, he was born about 1702 probably in Dobbs Co NC. Jeremiah was documented in Dobbs Co in 1769 and in 1779
1790 Census of Newbern District of Wayne Co NC, p150. Jeremiah Casey:1 male > 16, 3 males < 16, and 4 females, no slaves. Jeremiah onlylists 3 sons in his will: Samuel, James, and Lemuel. The bestestimate for Lemuel's birth is 1791. So it is possible that Jeremiahhad another son who was not living at the time of his will.
1812 partial Richmond Co NC tax list: Samuel Casey. Jeremiah's son Samuel would have been about 42 at the time. James and Jeremiah are listed on the 1806 list but not on the partial 1812 list. 
1826 Carteret Co NC - a Samuel Casey died. .
Samuel died aft 1812. possibly Richmond Co NC.
Personal Research/Notes. Custom Id: 8;
1790 United States Federal Census
Jeremiah M Casey Report for Billy Casey Brundage. Custom Id: 839; personal copy.
Our Native Heath, Richmond County North Carolina 1799-1899. Custom Id: 244; Georgia State Archives, ,, Morrow, Clayton Co, Georgia. Call Number: 929.3756 BRI.