Wow. Seems they all died of the same thing but they used “flu” or “pneumonia” rather than outright “Spanish flu” as the cause.
Patients often came down with a fatal case of pneumonia after initially coming down with the Spanish Flu. This could present a problem if many of those patients had pneumonia with the absence of the Spanish Flu at the time they started to be attended to by doctors. In such cases, the doctors sometimes listed the cause of death as pneumonia with no mention of Spanish Flu even as a contributory cause on the death certificates. This was despite the fact that such patients often were listed as victims of the Spanish Flu epidemic in the newspapers. Another problem was that it appears that there aren't death certificates on file for everyone who died at the time. As a result, there may have been quite a few people who died of Spanish Flu-related causes that were not included in the statistics. - Chuck Johnston