No coincidence - Rosières

Rosières-en-Santerre was (once more) the location of heavy fighting in August 1918, according to CWGC's record for this location. All three Lewismen buried in the Communal Cemetery extension were serving with the 2nd Canadian Division and died on 9th, 10th and 11th August 1918, i.e. in the same battle. They had all joined the Canadian forces from British Columbia, two of them voluntarily, one under the military draft.

2137501 Pte Angus Norman Murray (aged 34), 17 South Dell, husband of Edith Murray
29th Canadian Infantry (British Columbia Regiment)
Enlisted at Victoria BC in October 1917; resident of Portland, Oregon, USA
Date of death: 9 August 1918
Grave I. C. 10

2021278 Pte John Macphail, (aged 30), 11 North Bragar, son of Angus and Annie Macphail
72nd Canadian Infantry (British Columbia Regiment)
Drafted in at Trail BC in January 1918
Date of death: 10 August 1918
Grave III. A. 26

77635 Sgt Alex John Morrison (aged 30), 13 East Street, Sandwick, son of John and Catherine
16th Canadian Infantry (Manitoba Regiment)
Enlisted at Victoria BC in October 1914
Date of death: 11 August 1918
Grave III. C. 18