Hello 500Nitro,

He died at age of 51. I found a reference that stated he was actually born in India while his mother and father were there. His father Lt-Colonel A.C. McNeill was in the East India Company and became an officer in the Madras Army and awarded the CSI.

The reference further indicates the Capt. M.McNeill joined the Argylls at the outbreak of WWI, and was killed in Flanders in 1917. It does not say if he died on the battlefield, or in hospital. I'm still searching.