Sidney Mallett Webster was born on 23 January 1882 at Bethnal Green, Hackney, Middlesex, England. He was the fourth born (third son) of William James Webster (1853-1928) and Elizabeth Amelia Aburn (1853-1938). His parents married in 1874 in Whitechapel, England.

Like his four brothers, Sydney attended the Turin Street School in Bethnal Green. He was there from June 1889 until August 1894. The school opened in 1875 and closed in 1929.

On the nineteenth of October 1907 Sidney married Athelis Deborah (Bobby) Kesteven in the St Stephen's Mission Church, Putney Bridge Road, Wandsworth. She was the daughter of Dr William Henry Kesteven (1847-1936) and Athelis Beatrice Flint (1854-1930).

Sidney and Bobby had three children Beatrice Athelis (1909-1978) known as Peggy, Richard Flint Mallett (1913-2008) and Douglas Robert (1919-2007).

In her later life Sidney's widow, Bobby, lived at "Blue Tiles" in Birchington, Kent. The address of the property today (2012) is Daryngton Avenue, Minnis Bay. Her sister in law, Lily Southwick (nee Webster) used this as her address while travelling overseas in 1950.

Bobby died on 9 October 1961.

References:
Ancestry.com. London, England, School Admissions and Discharges, 1840-1911 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2010. This collection was indexed by Ancestry World Archives Project contributors.

One page in the series The Websters of Ashleigh