It has not been possible to make a positive identification of this man who is commemorated on the Stockport War Memorial as serving with the Cheshire Regiment.
The most likely candidate, and the only one with a known local connection, is Archibald McLachlan, who is commemorated on the Heaton Mersey Memorial. He died on 15 October 1918, but records indicate that he was serving with the King's Liverpool Regiment at the time of his death and, possibly had served with the Manchester Regiment before that.
A man called David W A McLachlan, who died on 4 November 1918, was defiantly serving with the 9th Cheshires, but he appears to have no connection with the Stockport area. He was born in Scotland and enlisted at Wallasey.
A third man, Andrew McLachlan, saw service with the King's Liverpool Regiment and, later, with the Cheshire Regiment, but he does not appear to have been a casualty. It is possible that he died after the war ended and, as such, may not be officially recorded.