Lieutenant-Colonel William Henry Kingsmill DSO MC (1 December 1905 – 3 June 1971) was a British politician and businessman.
[2] After early education at Ludgrove School,[3] Kingsmill attended Eton and the Royal Military College, Sandhurst, he joined the Grenadier Guards, his father's regiment, in 1920.
He served for nine years before transferring to the reserves in 1929 and returning to civilian life.
The same year, he married Aileen Smith; the marriage did not last, and the couple divorced.
[1] He worked as a businessman and company director until August 1939, when he rejoined the Grenadiers.