Hi Graham, I note you have done extensive research and I have hit a brick wall. My grandfather was John HEALEY (born @1876). His father was Patrick. It is thought they originated from Rathnew, Co Wicklow, southern Ireland. My grandfather married Josephener Newton in 1918 and she died in 1929. My grandfather seems to have disappeared, leaving behind my dad @9. It has been said that we had relatives in New York police?
If you have anything which I might investigate further I should br grateful.
John Peter Healey