I believe the Truetts that you are referring to are sons of Joseph Truitt/Trewhitt (abt 1700-1756) of Craven Co, NC. Levi and John Trewhitt appear to be the older sons of Joseph. Levi, my direct ancestor, was born abt 1725 and died before Sept 1812, Craven Co. The area south of the Neuse in Craven Co was the home territory of my ancestors for many years it appears.
Joseph's will lists only his older sons, Levi and John. However, other sources seem to strongly think that he had other children, namely Mary, William, Elijah and Samuel( this may the same Samuel that reference in your more recent post, although I have no information on him).