Alexander married Elizabeth Campbell Wilson on 13 Aug 1862 in w. wilson house, George St, Dunedin. Elizabeth (daughter of William Wilson and Isabella Campbell) was born about 1837 in Leith, Scotland; died on 3 Oct 1911 in 1 View St, Dunedin. [Group Sheet] [Family Chart]

1. Isabella Campbell Aitchison was born on 1 Mar 1866 in Club Reserve, Dunedin; died in May 1920 in Dunedin.
2. Jeannie Cuthill Aitchison was born about 1868 in Milton; died on 2 Jul 1928 in 20 Grange st, Mt Eden, Auckland.
3. Louisa Mary Aitchison was born on 28 Feb 1868 in Police Camp, Tokomairio, Milton; died in 1951.
4. Hugh Francis Chartres Aitchison was born on 15 Feb 1870 in Police Camp, Tokomairio, Milton.
5. Margaret Wilson Aitchison was born on 1 May 1872 in Milton, Otago; died on 5 May 1890 in 1 View St, Dunedin, Otago.
6. Alexander Aitchison was born about 1875 in Milton, Otago.
7. Elizabeth Campbell Aitchison was born in 1876 in Milton; died in Jul 1917 in Dunedin.