Looking for Lawton

Ada Constance LAWTON daughter of James Branton LAWTON born 1862 Yorkshire, England
daughter of Mary Any FLOYD born 8/10/1866 Howick ,Auckland
married Hamilton 12/12/1988
Ada Constance LAWTON was born 24/12/1896 at Shaftesbury, Te Aroha New Zealand
died 6 August 1959 in Waikato Hospital
As far as I am aware she never married
John Goodwin LAWTON son of Ada Constance LAWTON born June 30 1931 at Matamata was my father
died September 21 2009 at Ashburton

I know Ada had brothers and sisters.
My father was brought up in welfare homes and it would be nice to know if I have any relations out there as never had any growing up.