Alexander McIntosh was born in Lanark, Scotland in 1799 and died in Christchurch, New Zealand in 1881
He married Margaret Oliphant MacFarlane in 1827 in Perth, Scotland.
She was born about 1801 in Findo-gask, Perthshire and died in Christchurch, New Zealand in 1881 - 8 months after Alexander.

They emigrated to New Zealand on the LONDON, arriving 12th December 1840

They had:
Mary Ann McIntosh b.1829 in Falkirk, Scotland d.1830 aged 10 months in Scotland

John McIntosh b.1830 in Falkirk, Scotland - d.1900 in Lower Hutt, New Zealand. John married Arabella Firth - b.1839 in Mirfield, Kirkless d.1884 in Lower Hutt, New Zealand. She had arrived in New Zealand on the GEORGE FIFE with her parents James and Hammah (nee Rhodes) Firth.
John and Arabella had 15 children in the Lower Hutt/Wellington areas:
George 1855-1917 - he married Johanna Catherine Gronnebeck
Christina Jane 1857-1937 - she married James Cattell
Edward Jemingham Wakefield 1858-1929 - he married Sarah Edmon Mudgway
.. and his twin brother -
Peter James Lang 1858-1922 - he married Deborah Stanford
Alexander William 1860-1897 - he married Emma Moore
Arabella 1861-1842 - she married George Henry Harbroe
Thomas Maxwell 1862-1920 - he married Mary Cloutt
John 1864-1914 - he married Elizabeth Brown
Emma Catherine 1866-1937 - she married Charles Cudby
Margaret 1869-? - she married James McCullam
Henry Albert 1870-1947 - he married Isobella Sorbie
Frederick Joseph Plimmer 1871-1882, drowned in Hutt River aged 11
Mary Eleanor 1873-1874 died an infant in Wellington
Maude Alice 1875-1933 - she married George William James Tasker who died aged 37 when their 7 children were aged from 2 to 14. Maude remarried to Duncan Blair McInnes
Alice Mary 1877-? - nothing known

Henry McIntosh b.1832, a triplet with Lavinia and Catherine, d.1906 in Christchurch. He married Edith Atkinson Spurr. Her parents were Reverend Thomas and Elizabeth (nee Singleton) Spurr who emigrated from Rotherham to Hobart, Australia

Lavinia McIntosh b.1832 a triplet with Henry and Catherine, d.? married James Cooke and Henry Bennett

Catherine McIntosh b.1832, triplet with Henry and Lavinia, d.? married Charles Knigge

Margaret McIntosh b.1835 in Scotland d.? she married in New Zealand to William Henderson and Charles Ernest Ifwersen (he drowned at sea)

Mary Anne McIntosh b. in Scotland 1837 d.? - she married Samuel Grahan in New Zealand

John Alexander (Jock) McIntosh b.1839 in Glasgow d.1899 in Gisborne. Married Sarah Frances Foden in Timaru and had 9 children

Thomas McIntosh born 1842 in New Zealand d.1902 in Christchurch. He married Janet McClutchie and Henrietta Elizabeth Rutter

Christina McIntosh b.1842 in New Zealand d.1933. Christina married Andrew Fraser

If you can add any more info onto the tree like siblings, parents of spouses etc, please leave a note