Looking for Mulien Family of New Zealand

Am looking for any information on Daniel Mullin born Oamaru New Zealand 1883.
Parents were Ellen & Patrick Mullin. They married in Dunedin New Zealand. I am not sure but think according to Ellen's death certificate her maiden name was McGibben, born Londonderry Ireland 1842.
Patrick & Ellen had 4 children. One daughter born 1870 & another in 1875. One son born 1881 and Daniel in 1883.
Daniel married Ivy Muriel Cullen 25/04/1910 in Wellington New Zealand. They had 3 children: Caroline Marion, Patrick Daniel & Ivy Muriel. They were divorced in December 1917.
Daniel died 27/02/1961 aged 78 @ Lake Alice Hospital Bulls. He was buried on 03/03/1961 @ Karori New Zealand. The headstone also has Ellen Jane Robinson buried 20/02/1954.
Patrick was a returned serviceman & died 17/02/1968 in Waiho New Zealand.
Caroline Marion Jopson nee Mullin died 02/03/1993 in Lower Hutt.
Ivy Muriel Brown nee Mullin died 26/11/1996 in Merriwagga NSW Australia