See Operation Mincemeat for Major Martin's role in WW2. The body was identified in 1996 as that of Glyndwr Michael, a Welsh homeless man, but the Wikipedia page puts forward a number of other possibilities.
Wikipedia has this grim photo captioned "Corpse of 'William Martin', prepared for release into the water".
This section lists the memorials where the subject on this page is commemorated:
Major William Martin
The Biblical quotation draws attention to the secrecy which was essential to ...
Co-partner or employee of the South Suburban Gas Company. Served but did not die in WW1.
Born Vernon Erle (or Earl) George Busby. In 1914 he joined the Royal Engineers, and was posted to France with the British Expeditionary Force, where he was wounded at the Battle of Mons. Afterwards...
Co-partner or employee of the South Suburban Gas Company. Served but did not die in WW1.
A corps of the British Army. It provides military engineering and other technical support to the British Armed Forces. Known as 'sappers' apparently from the French 'sappe' meaning 'spadework' or '...
