Elmer is known throughout the industry for his expertise and knowledge of Bourbon whiskey. His career in Bourbon began after the Second World War when in September 1949 he began working in the engineering department of the George T. Stagg Distillery in Frankfort
In 1966, Elmer was promoted to plant superintendent, responsible for all plant operations and reporting to the plant manager. 1n 1969, he became plant manager
Elmer retired in 1985, but continues to serve as ambassador for Buffalo Trace, educating the world on the unique qualities of Kentucky's Bourbon whiskey
It was in 1984 that Elmer introduced the single barrel bourbon concept to the world with Blanton's single barrel Bourbon, named in honour of Col. Albert B. Blanton.
He is also only one of three living master distillers who have a Bourbon whiskey named after them