Jaques served in the British Army during World War II, obtaining the rank of second lieutenant on 14 January 1944 and being given the service number of 307125.
[1] He relinquished his commission from the Royal Regiment of Artillery in October 1944 on account of ill health.
[4] Following the war, Jaques made a single first-class appearance for Leicestershire against Northamptonshire at the County Ground, Northampton in 1949.
[5] Batting at number six in Leicestershire's first-innings, he made 55 runs before he was dismissed by Des Barrick.
His grandson, Robin Lett, has also played first-class cricket, while his sister, Faith Jaques, was a children's book author and illustrator.