Air Mechanic 3rd Class Sidney Wilfred Clark, 161824, Royal Air Force, died in the 1st Eastern Central Hospital at Cambridge on July 15th, 1918, but his death and the cause appears to have gone unrecorded in local newspapers. He was aged 20.

Sidney is, however, commemorated on the Leagrave War Memorial in Marsh Road, near where he, his father Robert Henry, mother Florence Mary and three brothers and a sister had resided at the time. The family address was Carlton House, 35 Marsh Road. Sidney's name was also included in the Leagrave and Limbury Peace Day programme.

Available records show that Sidney was born in Newark-on-Trent, Nottinghamshire, on March 13th, 1898. His family were living in Birmingham when his youngest brother Reginald was born in 1905, and were in Harpenden at the time of the 1911 Census. Father Robert is listed as an engineering manager at a motor works.

The family had moved to Marsh Road by the time Sidney's sister Kathleen was baptised in August 1914.

Sidney was buried in Holy Trinity Churchyard, Biscot.