P. G. McNamara, b: -

^{1950 Korean War begins}
^{1964 - 1973 Vietnam War}
^{1969 Armstrong first person on moon}
^{1986 Nuclear disaster at Chernobyl}
^{1989 Berlin wall falls}

^{1912 Titanic sinks on maiden voyage}
^{1914 - 1918 World War I}
^{1922 USSR formed by Soviet states}
^{1939 - 1945 World War II}
^{1945 Atomic bomb detonated (Hiroshima)}

^{1869 Opening of Suez Canal}
^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}
^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}




	^{P. J. Lydon}^{b. d.}

^{M. J. Lydon}^{b. d.}

^{S. J. Lydon}^{b. d.}			^{Michael Lawrence McNamara}^{b.1866 Co. Clare, Ireland d.1960 Martinez, CA}

^{J. N. Lydon}^{b. d.}		^{Nicholas Joseph McNamara}^{b.1905 Elizabeth, Union Co., NJ d.1983 Oakland, CA}	^{Helen Kavanaugh}^{b.1876 Dublin, Ireland d.1962 Martinez, CA}

	^{P. G. McNamara}^{b. d.}		^{George Orcenith Duncan}^{b.1868 Linden, CA d.1933 Walnut Creek, CA}

		^{Georgana Eileen Duncan}^{b.1907 W, Contra Costa Co.. CA d.1989 Capitola, CA}	^{Lizzie Adelaide Waite}^{b.1877 Oakland, CA d.1959 Walnut Creek, CA}