Grandchildren OR Children After Ellen Ottilia and Ludwig Christoffersen from Sweden Too Hamilton Nz

Looking for Children or grandchildren after Ellen Ottilia Christoffersen b. 1891 from Sweden, come too NZ 1910 to Hamilton
Ellen Ottilia born 14/10 1891 in Ostmark Sweden. She have the name Hendriksdotter before she was marrid with Ludwig Christoffersen from Norweg. She have a brother with name Otto Alfred Henriksson born 1889 23/4. They live in Sweden too 1909. Otto deceased 1913 10 03 in Wellington. Ellen and Ludwig have 2 children. Ludwid deceased 1959 09 27 in Hamilton. They emigretid too Nya Zeeland 1909