William married Margaret Guthrie HILL on 6 Apr 1840 in Glasgow, Lanarkshire, Scotland. Margaret was born on 21 Mar 1821 in Dundee, Angus, Scotland; died on 15 Feb 1895 in Bunbury, Western Australia, Australia. [Group Sheet] [Family Chart]

1. Mary FORREST was born in 1840; died in Feb 1842 in Glasgow, Lanarkshire, Scotland.
2. William Henry FORREST was born on 11 May 1842; died on 4 Dec 1899 in Bunbury, Western Australia, Australia.
3. James Hill FORREST was born on 24 Jun 1845 in Australind, Western Australia, Australia; died on 8 Nov 1928 in Ludlow, Western Australia, Australia.
4. Sir John FORREST was born on 22 Aug 1847 in Bunbury, Western Australia, Australia; died on 2 Sep 1918; was buried in 1918 in Cemetery, Karrakatta, Western Australia, Australia.
5. Alexander FORREST was born on 22 Sep 1849 in Bunbury, Western Australia, Australia; died on 20 Jun 1901 in Perth, Western Australia, Australia.
6. David FORREST was born on 2 Jan 1852 in Wellington, Western Australia, Australia; died on 5 Jan 1917 in Claremont, Western Australia, Australia.
7. Robert FORREST was born on 9 May 1854 in Picton, Western Australia, Australia; died in 1889 in Bunbury, Western Australia, Australia.
8. Matthew FORREST was born on 14 Jan 1857 in Picton, Western Australia, Australia; died on 14 Dec 1884 in Broome, Western Australia, Australia.
9. George FORREST was born on 19 Nov 1858 in Picton, Western Australia, Australia; died on 19 Sep 1916 in Picton, Western Australia, Australia.
10. Augustus Ramsay FORREST was born in 1861 in Picton, Western Australia, Australia; died in 1863 in Picton, Western Australia, Australia.