Analysis of information sources in references of the Wikipedia article "Douglas Haig, 1st Earl Haig" in English language version.
...whose name is a strange homage to Sir Douglas Haig...
... The original school was built in honour of Field Marshal Douglas Haig, 1st Earl Haig (1861–1928)
The road is named after Douglas Haig, 1st Earl Bemersyde, the commander-in-chief of the British Expeditionary Force in France from 1915 to 1918.
The ground was renamed Haig Avenue (after Earl Haig) in 1921
... The original school was built in honour of Field Marshal Douglas Haig, 1st Earl Haig (1861–1928)