The inventor Elijah McCoy died at the age of 85. Here is all you want to know, and more!
Biography - A Short Wiki
Best known as the inventor of mechanical lubrication for steam engines, he also had 57 other U.S. patents to his name. His name, McCoy, is a likely origin of the expression “The real McCoy.”
He was first married to Ann Elizabeth Stewart who died four short years after they married. He then married Mary Eleanor Delaney.