The soldier at the following link has service records as Allen M. Webb. His records indicate he was sick with no mention of his exact ailment or death.

Copy and paste this url for headstone photo.

http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GSln=webb&GSbyrel=all&GSdyrel=all&GSst=27&GScnty=1586&GScntry=4&GSob=n&GRid=16967715&df=all&