Unfortunately, I don't think the lines are the same. I wish you luck researching your line, though! It can be frustrating and tough at times but tenacity can prove extremely rewarding.
Additionally, since posting that, I visited John Raymond Kearney's grave (H 10216) at Long Island National Cemetery to find his wife, Catherine (Dec 16 1893 - Jan 27 1950), buried with him. It may be that the John and Catherine Kearney were John Raymond and this wife, Catherine. I am not sure as John Raymond's death certificate lists Catherine Kennedy as his mother. I have yet to locate his birth certificate or alternate documents to corroborate that information, however.