Sorry, I should have read you message better. You said you were Jessie's gdaughter! Please excuse my dim-wittedness, I haven't had my second cup of coffee yet. So, the question should have been which one of Jessie's children is your father, Henry Grady, Jr, Jack Heggie, or Franklin Pentecost?
I have more info on B.F. and Augusta. What do you want to know?