Alfred John Monson was born in 1862. His parents were Rev. Thomas Monson and Hon. Caroline Monckton, putting the first two Barons Monson and the Viscounts Galway among his close ancestors. Both of his parents were descended from Anne of Exeter through the Earls of Rutland. Monson was a confidence trickster with three small children, soon to be made bankrupt.
Cecil John Hamborough was about a decade younger, a tall non-swimmer and the son of Major Dudley Hamborough, seeking a commission in the Yorkshire Millitia. In 1891, the Major hired Monson as Cecil’s tutor at six pounds a week for this purpose but the Major was having second thoughts by 1893, the year before Cecil would reach his majority. Cecil and Monson made their way to the Ardlamont estate in Argyll for the summer shooting season, together with Mrs. (Agnes Maud) Monson and Edward Davis, an associate of Monson’s. Hamborough’s life was insured in Mrs. Monson’s interest for £20,000. The three men set out on Ardlamont Bay in a boat which developed an open plug-hole and sank – this was very close to the shore and Hamborough waded to dry land.
On 10 August, they walked into a dense woodland on the estate. A shot rang out and only two – Monson and Scott – emerged alive, Hamborough being found with a bullet in the head. It was not yet open season for grouse but it was for army lieutenants. Monson was arrested three weeks later although Davis (or Ted Scott or Edward Sweeney) returned to hide in the London underworld. Monson was tried and found “not proven”. Madame Tussaud’s exhibited a waxwork of Monson and he successfully sued them for libel but won only a farthing.
Given his lineage, it is highly probable that Alfred John Monson had received a classical education. He would have learned how Nero sought to murder his mother Agrippina by sinking a boat she was on. He would have learned how William II, Walter Tirel and others went into the New Forest in early August 1100, the others returning safely but the King being shot dead (with an arrow) and nobody punished. Quite apart from his desperation for money, Monson was inspired by these examples – again the drowning failed but the shooting succeeded.
We do not yet know when Alfred Monson died but he was later imprisoned for five years for fraud, whilst Agnes lived until 1942. In 2012, his twenty-eight year-old cousin Hon. Alexander Monson, son of the twelfth Baron, died in Kenya from blunt force trauma, as the result of apparent police violence.
Main source: “Murder Not Proven”, by the late Jack House, dramatised by BBC1.