A left-arm spin bowler, he played in three first-class cricket matches, one in 1949 and two in 1950, and was signed as an association footballer by Queens Park Rangers.
After taking 128 wickets during the 1945 season,[2] he was taken on to the ground staff at Kent in 1946, living with an aunt in Whitstable in order to be closer to the county's Canterbury headquarters.
[1][2] On what The Times called a "badly crumbling pitch",[5] he did not bowl in the second innings as Fred Ridgway and Eddie Crush took all ten wickets to dismiss Glamorgan for 114 runs.
[6] Described by Derek Ufton, a contemporary on the Kent ground staff, as "a left-arm bowler with a beautiful action",[7] Aitchison appears to have been less effective following his National Service.
[2] He was described in The History of Kent Cricket as a "professional footballer"[9] and was signed by Queens Park Rangers, but never played for the side in a senior match.