Is this the family from Australia?
Father:
Patrick McCoy  
Birth 1/8/1877 in Melrose, South Australia, Australia (BK 187 Pg 379 Shown as Patrick COY not McCo
Death 31/10/1952 in Charters Towers, Kennedy, Queensland, Australia 
1 Apr 1910 Age: 32 Marriage to Alice May Skien in Queensland:Cloncurry (Witnesses: Alicia Josephine Robinson and May A.L Baker Marriage Registration Number 000660 Page 16812
Mother:Alice May Skien 
Birth 8 Dec 1893 in Qld, Australia 
Death 7 June 1972 in Nambour, Queensland, Australia
Ethel Mary McCoy 
Birth 10 March 1912 
Death 19 June 1994 in Queensland, Australia 
Marriage to Percival Smith Faulkner, Queensland,Australia 
George Ernest McCoy 
Birth 16 Feb 1914 
Death 9 Sept 1990 in Buderim Cemetry, Queensland1914 – 1990
George's wife and two children are alive so I can't type the details here.
Patrick John McCoy 
Birth 26 April 1921 in Dutchess, Queensland Australia 
Death 1978 in Clermont, Queensland, Australia
1942 25 Feb Military Townsville, Queensland Australia AC437651 Enlisted RAAF 
If yes there is a massive family tree on ancestry with photos of them all with records verifiying who there are.  Also giving details of grandparents, aunts, uncles etc.  If you don't have access to ancestry I suggest you join and message the tree owner which I will pm to you if details are correct.