In the early 1980s, the nascent days for the ethanol industry, there were a multitude of questions about its use.
They poured in from farmers and corn growers, motorists and politicians.
Larry Johnson, a farmer from Cologne, Minn., accepted the task of answering those questions. He eventually became known as the "Ethanol Answer Man."
"I think [the role] evolved gradually and naturally for him," said his brother, Cliff Johnson of Chaska. "He didn't just jump into it. He had been a farmer and corn grower for 20 to 30 years. And he got involved with the Minnesota Corn Growers Association."
Cliff Johnson said one of the things that helped his brother in his role as an ethanol spokesman was that "he had the mind of a chemist. He would hear an idea and he would say, 'I get this.' "
Larry Johnson died July 19 after suffering a stroke. He was 76.
The Minnesota Corn Growers Association tweeted that Johnson was "a pivotal figure in the growth of ethanol."
Cliff Johnson said his brother was suited for his role.