Mary Jane's death cert may give you a more accurate place of birth ... and/or her parents.
Okay, now I'm seeing Susan:
GEARHART, JOHN HULL, SUSAN 1876-03-02 A 59 2371 MOULTRIE
Name: Susan Hull Age in 1860: 3 Birth Year: abt 1857 Birthplace: Canada West Home in 1860: Mattoon, Coles, Illinois Gender: Female Post Office: Mattoon Value of real estate: View image Household Members: Name Age Sely Hase 77 Elizabeth Hase 76 William Hull 30 Eliza Hull 29 Susan Hull 3 Anna R Hull 8/12 Sam Greely 30
Well, now you know Cochran was Eliza/Elizabeth (same name) from MJ's sibs' marriage records.
MJ married in Moultrie so that is her family:
FLEMING, SAMUEL M HULL, MARY J 1872-02-11 A 46 1840 MOULTRIE
So you want to surf for Co Antrim records or other Hulls from there, particularly using the given names in your family.