Trying to verify the parents of William H. Johnson, b Italy, married Mary O'Neil b Ireland. They had several children, one being Isabella R. Johnson, b 1856 Boston, d 1900 Boston. She married John Thomas Vallely and one of their children Alice W. Vallely is my paternal grandmother. I have found an Elizabeth Johnson b 16 Apr 1837 at British Chaplaincy Genova, Genova, Italy to parents John Johnson and Mary. The possibility of additional children and the time frame makes this worth a closer look. Any help would be greatly appreciated.