DMK (Donald Marcus Kelway) Marendaz served as an apprentice at Siddeley-Deasy before the first World War.
He left to join the Royal Flying Corps in 1916, training as a pilot and serving in France until invalided out in 1918 with the rank of lieutenant.
[1] After 1918, he joined Alvis, but was sacked, and shortly afterwards started Marseel with a Mr Seelhaft; the company manufactured gearboxes for the Emscote car.
A strange departure was the 1495 cc straight-eight which used a special Anzani crank and Marendaz designed block.
Sales were again supported by a considerable racing programme including entries by Marendaz himself up to 1931 and his secretary Miss Dorothy Summers up to 1936.
[1] Marendaz was a supporter of Oswald Mosley, leader of the British Union of Fascists, and this led in 1940 to him being jailed on security charges.