Hi Cindy....I don't know who the parents or grandparents were of your Freeman Pettus, but I can tell you where the name came from since my husband's maternal grandmother was Rebecca Brooks Pettus Stanfield.
The original Freeman was the son of Samuel Overton Pettus and Jane Freeman.Samuel was a Capt. in the Revolutionary War and was b. 11 Mar 1751 in Hanover Co, VA.He d. 9 Jan 1819.Samuel and Jane had four children--John, Freeman, William (Buck) and Jane.Freeman and William are part of the first 300 families to settle in Mexican Texas and are listed as members of "The Old Three Hundred".You can learn more about the settlement of Texas in the Handbook of Texas.William Buck had a son John Freeman Pettus and the small town of Pettus, Tx is named for him.He fought in the Texas war for independance from Mexico.Freeman had two sons, Samual Overton (named for the one above) and Edward Craddock who was my husband's gr. grandfather.Both Samuel and Edward fought in the war for independance from Mexico and Samuel died during the war at the massacre at Goliad, TX.Samuel fought until the end of the war and was present at the final battle at San Jacinto.You can see the Pettus names on the San Jacinto Monument south of Houston.I can't tell you which Freeman your grandfather was named for.I don't believe it was for Freeman himself because I know about all of his descendants and it appears that Samuel had only a daughter before he died.I would guess that your relative was from the line of William whose son was John Freeman Pettus.You should be able to find out about this from Texas records.The Pettus's were a prominent family way back to the days of early Williamsburg....Monica Palmer Dean