I am looking for some info - mainly the names of parents / siblings of my 2x great grandfather John Keegan, born about 1856 in Westmeath, Ireland and died about 1888 in Dublin, Ireland.

John was married to Catherine / Katherine McGrath, born about 1854 in Monkstown, Taghmon, Westmeath, Ireland and died 25 Feb 1938 in Dublin, Ireland.

They had 5 children: Edward Laurence Keegan (1879 – 1938) (my great grandfather), Thomas Keegan (b 1882), John Joseph Keegan (b 1884), Mary Ellen Keegan, (1886 – 1938), and Michael Keegan (1887 – 1889).

I can't seem to locate John Keegan (born 1856) 's parents details..

Thanks