This article is part of Overlooked, a series of obituaries about remarkable people whose deaths, beginning in 1851, went unreported in The Times.

Little about the life Robert Leroy Johnson lived in his brief 27 years, from approximately May 1911 until he died mysteriously in 1938, was documented. A birth certificate, if he had one, has never been found.

What is known can be summarized on a postcard: He is thought to have been born out of wedlock in May 1911 in Mississippi and raised there. School and census records indicated he lived for stretches in Tennessee and Arkansas. He took up guitar at a young age and became a traveling musician, eventually glimpsing the bustle of New York City. But he died in Mississippi, with just over two dozen little-noticed recorded songs to his name.

And yet, in the late 20th century, the advent of rock ’n’ roll would turn Johnson into a figure of legend. Decades after his death, he became one of the most famous guitarists who had ever lived, hailed as a lost prophet who, the dubious story goes, sold his soul to the devil and epitomized Mississippi Delta blues in the bargain.