What did the Dodge brothers die of?

The Dodge brothers, John Francis Dodge and Horace Elgin Dodge, died from complications related to pneumonia. John Dodge passed away on January 14, 1920, and Horace followed shortly after on December 10, 1920. Both brothers had been suffering from health issues, which were exacerbated by the influenza pandemic of 1918-1919. Their deaths marked the end of an era for the Dodge brothers' automotive legacy.