Paisley, Ontario (parents)***his RAF/military headstone misidentifies him as "Francis E. Collins", should be "Harold F. Collins".***
The rank of "private" was reserved for clerical positions (as opposed to air mechanic positions). It is most likely that he was another victim of the Spanish Flu epidemic ongoing at that time, but that is speculation.
Canadian Virtual War Memorial
Commonwealth War Graves Commission
Finadagrave.com