 However, in a 1936 interview, son James Vernor, Jr. suggested that his father did not develop the formula until after the war, a theory confirmed by former company president James Vernor Davis in a 1962 interview.According to the 1911 trademark application on "Vernor's" as a name for ginger ale and extract, Vernors did not enter commerce until 1880, years after returning from the war.In 1896, Vernor and his son James Vernor, II.