Glen Milborn Sherley (March 9, 1936 − May 11, 1978) was a country singer/songwriter, who is most well known for penning the song "Greystone Chapel". During the late 1960s, whilst in Folsom Prison serving time for armed robbery, Sherley wrote and recorded "Greystone Chapel", in reference to the chapel within the prison. On January 12, 1968 a copy of this recording made its way into the hands of Johnny Cash by way of a Folsom Reverend who was friends with Cash, the night before he was due to appear in concert at Folsom. After the release of Greystone Chapel, Sherley's next major success came in 1971, when country singer Eddy Arnold recorded another song written by Sherley, "Portrait Of My Woman". The song became the title track from Arnold's next release. Following the notoriety gained through the Arnold release, Glen Sherley was then offered the chance to record a live album whilst still in Prison. The album was a success when it was recorded and released by Mega Records, with the permission of prison officials, leading to an offer from Johnny Cash himself to join Cash's publishing organization, House of Cash. Throughout the late 1970s Sherley struggled to cope with stardom, and he quickly faded out of the limelight, and into obscurity. Sherley ended up working for a large cattle company, feeding 10,000 cattle a day. He lived in the cab of a semi truck, and tried to stay out of the public eye. On May 11, 1978, Sherley died from a self-inflicted gunshot at his brother's home near Salinas, California.