Cyril Unwin was born 1878 in Lewisham, Greater London, England, United Kingdom to Edward Unwin (1840-1933) and Elizabeth Spicer (1841-1921) and died 26 April 1933 Canterbury, New Zealand of unspecified causes. He married Grace Eugenie Curline (-1970) 1922 in New Zealand.
|Edward Unwin (1870-)|
|William Howard Unwin (1871-1945)||10 December 1871 Greenwich, Greater London, England, United Kingdom||25 December 1945 Timaru, Canterbury, New Zealand||Phyllis Agness Florence Hall (-)|
|Sidney Unwin (1873-1962)||1873 Hatcham, Kent, England, United Kingdom||30 May 1962 Omakau, Otago, New Zealand||Grace Ethelwyn Stalley (1880-1961)|
|Mabel Lizzie Unwin (1874-1933)|
|Basil Unwin (1876-1877)|
|Cyril Unwin (1878-1933)||1878 Lewisham, Greater London, England, United Kingdom||26 April 1933 Canterbury, New Zealand||Grace Eugenie Curline (-1970)|
|Ella Unwin (1880-)|
|Bernard Unwin (1881-1941)|
|Stanley Unwin (1884-1968)||19 December 1884 Handen Road, Lee, Greater London, England, United Kingdom||13 October 1968 England, United Kingdom||Alice Mary Storr (1883-1971)|
Publisher brother Stanley was knighted.
|Diana Mary Unwin (1923-2014)|
http://www.victoria.ac.nz/sog/researchcentres/chair-in-restorative-justice/images/Diana-Unwin-Biography.pdf is an extensive biography of Diana, with several paragraphs about Cyril and Grace. "Uncle Stanley, the publisher, regularly sent packages from England — The Hobbit was in the post the moment it came off the press— ...". "Over her adult life Diana had been involved in CORSO, UNICEF, Save the Children, the United Nations Association, CND, WILPF and the international peace movement."