John Brien and Kate Collins married in Drimoleague Parish on 13 February 1858.  The Witnesses were Bryan Hennessy and Owen McCarthy.

We note from some of the baptismal entries below that the surname was recorded as Mangane and as Brien for that same child in the State Birth Register.  These were one of the Brien clan with the branch name or agnomen Mangane.  We do see examples in families especially in the Drimoleague Catholic Parish where the surname used may be either Brien or Mangane and some children are baptised Mangane and others Brien.

Children baptised in Drimoleague Catholic Parish on dates shown:-

Charles, baptised Mangane on 28 Dec 1858.  Sponsors: Daniel Kelly, Mary Brien. ( birth date is pre State Register era)

John, baptised Mangane on 19 Jan 1861.  Sponsors: John Collins, Margaret Donovan. ( birth date is pre State Register era)

Denis, born Clashduv and baptised Brien on 28 Apr 1863.  Sponsors: Florence McCarthy, Mary Conolly. ( birth date is pre State Register era)

David, born North Driminidy and baptised Brien on 17 Apr 1866.  Sponsors: Denis Collins, Bridget Brien.  Brien is his surname on State Birth Register

Bridget, born Driminidy and baptised Mangane on 4 Oct 1868.  Sponsors: Florence McCarthy, Bridget Hourihan.  Brien is her surname on State Birth Register

Jeremiah, born Derryclough and baptised Brien on 3 Apr 1871.  Sponsors: Michael Hourihan, Kate O'Connell.  Brien is his surname on State Birth Register