This boy's mother was hired out to William H. Pendleton. Though the record says that Pendleton "heirs" the mother, she was likely hired by him and gave birth to this boy while she was hired by Pendleton.
There are 4 unrecorded named boys listed under the enslaved individuals of Col. William Watts. These individuals have birth dates that could be a match for Tom Jr., Baldwin, or Lewis, but there is not enough information to confirm it in the record.