Matthew married Mary Ann Knibbs between 1 Jul 1901 and 30 Sep 1901 in Windsor District, Berkshire, England. Mary (daughter of James Knibbs and Matilda Wilkins) was born on 12 Mar 1875 in Old Windsor, Berkshire, England; died between 1 Jul 1957 and 30 Sep 1957 in Windsor District, Berkshire, England. [Group Sheet]

1. Arthur Victor Knibbs was born on 26 Apr 1897 in Windsor District, Berkshire, England; died on 2 Aug 1975 in Old Windsor, Berkshire, England; was buried in Crimp Hill Cemetery, Old Windsor, Berkshire, England.
2. Henrietta Porteus was born between 1 Apr 1902 and 30 Jun 1902 in Old Windsor, Berkshire, England; died after 1924.
3. George Matthew Porteus was born on 23 Nov 1903 in Old Windsor, Berkshire, England; died between 1 Jan 1970 and 31 Mar 1970 in Windsor District, Berkshire, England.
4. James Porteus was born between 1 Oct 1905 and 31 Dec 1905 in Dunstan on Tyne, Durham, England; died after 1930.
5. Mary L. Porteus was born on 15 Jun 1912 in Reading District, Berkshire, England; died after 1972.