Spanish flu

I thought all of the brothers had died of Spanish flu. I could only find one confirmed.


Source: "The History of Harrismith" by Hawkins
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List 4
Persons who died in and around Harrismith of the 'Spanish' Influenza during 1918:

Welch, Robert, Mr

This may have been them:
 http://www.britishmedals.us/files/127kfs.htm

http://www.southafricawargraves.org/search/details.php?id=28014

http://www.southafricawargraves.org/search/details.php?id=28010