Narrative
Bradford is the name given by Virginia Thompson Helm for Jane, based on her son's middle name ... it may be as good of a guess as any. Other suspect her maiden name was Smith, based on census of an eldeerly Smith man living with her. Some suspect Issac Grant was her husband but all records found show age appropriate Issac Grant being single teacher.
Narrative
There is no verification of Jane's maiden name or who her parents are; there is no verification of who her husband was [all Issac Grant Sr in Jefferson county was married and Issac Grant Jr was single]
Narrative
Jane and M[ary] are listed in 1860 Jefferson County Census, with T[heodrick] age 16, with Smith.
[note a John Grant is listed in 1840 census but no names other than his given - only age and gender brackets - IF this is Jane's husband there are more children older than the ones we know about]
Narrative
Per Julia Grant death certificate her father's name was Issac Grant