Henry Sydney Mervyn Costello, b: 1921 - Berami, New South Wales

^{1964 - 1973 Vietnam War}
^{1969 Armstrong first person on moon}
^{1986 Nuclear disaster at Chernobyl}
^{1989 Berlin wall falls}
^{1991 Persian Gulf War}

^{1914 - 1918 World War I}
^{1922 USSR formed by Soviet states}
^{1939 - 1945 World War II}
^{1945 Atomic bomb detonated (Hiroshima)}
^{1950 Korean War begins}

^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}
^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}
^{1912 Titanic sinks on maiden voyage}


^{Mervyn James Costello}^{b.1940 Belmon, New South Wales d.1960 New South Wales}

^Costello^{b. d.}

^{Patrick Costello}^{b.1944 Belmon, New South Wales d.1987 New South Wales}	^{Henry Sydney Mervyn Costello}^{b.1921 Berami, New South Wales d.1995 Budge, New South Wales}

^Costello^{b. d.}

^Costello^{b. d.}			^{Charles Frederick Sydney Edwards}^{b.1875 Poss Lyd, Gloucestershire d.1949 Newca, New South Wales}

^Costello^{b. d.}		^{William Sydney James Edwards}^{b.1898 Christchurc, New Zealand d.1973 Belmont Hospital, New}	^{Ada Wilhelmina Reckenberg}^{b.1875 Germany d.1952 Newca, New South Wales}

^Costello^{b. d.}	^{Nancy Edwards}^{b. Private d.}

^Costello^{b. d.}		^{Ethel Matilda Garside}^{b.1900 Poss New South Wales d.1974 Newca, New South Wales}