[2] He was educated at Tonbridge School in Kent, being described in 1922 as a very young batsman of "distinguished cricketing stock".
[7][8] He first played for Kent's Second XI the same year and scored a century for the side in 1927 before making his Kent First XI debut in June 1928 in a match against Sussex at Tunbridge Wells.
He made one half-century for Kent, scoring 64 runs against Northants in 1930, and played occasional matches for the Second XI.
[7] Mitchell also played six times for MCC and once for HDG Leveson Gower's XI in first-class matches and played club cricket for Blackheath, Old Tonbridgians and Band of Brothers.
Mitchell married Joan Hall in 1925 and died at St John's Wood in London in 1960 aged 52.