OK, Do you know which Martin Sesslar it was (e.g. date of birth/death)? Do you have any information on his children and their marriages/other info? Have you seen the original paper/copy to verify that it is James M. Killip and not something else such as James McKillip?
I have info on a number of James Killips but without more detail, it is not possible to identify which may be Martin's grandson.