I know that well. Hundreds died just a few miles from my doorstep at Camp Dodge, in Iowa. Otherwise healthy young men and women. Oddly, according to one account the guys who had just arrived from Alaska were particularly hard hit.
Also, my Grandma’s cousin Mary went off to France as a nurse, survived the war, and died of the flu at the age of 23 after she had returned home.
http://www.iptv.org/IowaPathways/mypath.cfm?ounid=ob_000279
Thanks for the link, very interesting.
One theory has it that the flu started at a military base in US, traveled overseas with troops, mutated there, and came back here to be the killer in the fall.