Thank you very much for replying! Yes, John Gossard was the father of Jacob Newton Gossard, Mariah Louisa's husband. Araminta Newland was John Gossard's second wife and also the sister of John's first wife, Elizabeth Newland. So Jacob Newton Gossard was the grandson of John B. Newland, as his mother was Elizabeth Newland, a daughter of John B. Newland. Mariah Louisa McGinnis was close in age to the grandchildren of John B. Newland, so it is probably not surprising that she married one of the grandsons.